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Н Новости

Запускаем Yolo на пятирублёвой монете или Luckfox Pico Mini

Размер платы немного больше пятирублёвой монеты

В данной статье речь пойдет про использование платы Luckfox Pico Mini. Я расскажу про особенности, её настройку, а также о том как запускать на ней нейронные сети для детекции объектов с камеры (Yolov8). Всё дальнейшее повествование опирается на желание автора использовать устройство для обработки изображений нейронными сетями в реальном времени (или почти). При этом обработка изображений не может работать изолированно от других устройств общей системы, поэтому в статье также будет рассмотрена интеграция Luckfox Pico с внешней периферией.

О серии плат

Luckfox Pico - серия плат для разработки на основе процессоров Rockchip RV1103 и RV1106.

В плане вычислительной мощности между данными процессорами большой разницы нет. Приведу концептуальные схемы устройства процессоров из даташитов:

RV1103

RV1106

У RV1106 есть некоторые дополнительные интерфейсы для внешних устройств, а в остальном процессоры похожи.

Компания Luckfox выпускает различные одноплатники, но меня больше всего заинтересовал самый маленький по размерам Luckfox Pico Mini.

Есть две версии этого одноплатника:

Luckfox Pico Mini A

Luckfox Pico Mini B

Разница в наличии Flash памяти у B версии

B версия отличается от A только наличием распаянной на плате Flash памятью на 128 Мб. На Flash можно поставить операционную систему, но 128 Мб - как - то мало (в 2024 году, разумеется), поэтому особого смысла в Flash памяти нет, хотя его можно использовать в качестве резервного хранилища важных данных, например, логов.

На данный момент стоимость A версии с учётом доставки немного больше 900 рублей:

В начале августа она стоила дешевле

Характеристики платы:

Processor	RV1103 -> Cortex [email protected] + RISC-V
NPU	0.5TOPS, supports int4, int8 and int16
ISP	Input 4M @30fps (Max)
Memory	64MB DDR2
USB	USB 2.0 Host/Device
Camera	MIPI CSI 2-lane
GPIO	17 × GPIO pins
Default Storage	Mini A: TF card (Not included) Mini B: SPI NAND FLASH (128MB)

Главный интерес вызывает NPU, который позволяет проводить инференс нейронных сетей с достаточно большой скоростью (относительно инференса на процессоре). Отношение размера платы к её возможностям радуют.

Масса платы чуть больше четырёх грамм.

На плате имеется 17 GPIO пинов, некоторые из которых могут реализовывать различные протоколы проводной связи - SPI, UART, I2C:

Pinout

UART2 используется для отладки/альтернативного взаимодействия с платой. Также плата поддерживает Ethernet, в отзывах на товар я нашёл такую фотографию:

Фотография из отзыва на Aliexpress

Установка Linux

Для платы существует 2 основных образа - сборка на основе Buildroot и сборка на Ubuntu. Все готовые образы можно найти здесь, также вы можете собрать свой, но в этой статье про это рассказываться не будет. Для большинства задач будет достаточно образа на основе Buildroot, в нём есть всё что нужно и даже лишнее, что мы позднее отключим. Именно его я и использую на своих Luckfox Pico Mini:

Нужный образ можно скачать с гугл диска(firmware/buildroot)

Скачанный архив нужно распаковать где - нибудь. Установить операционную систему можно на Flash память или SD карту. Как было сказано ранее, объём Flash памяти на данной плате невелик или вообще отсутствует в A версии, поэтому я подробно расскажу про установку операционной системы на SD карту.

Установка на Flash

Для установки операционной системы на встроенный Flash есть утилита upgrade_tool. Она работает и под Linux, и под Windows.

C записыванием образа на SD карту есть некоторые сложности. В документации разработчики предлагают использовать проприетарный SocToolkit, который должен работать под Windows и Linux. У меня воспользоваться им не получилось. В разделе “SDTool” в поле выбора SD карты для прошивки было пусто. При этом я запускал программу от рута, запускал на разных операционках: Arch Linux, Ubuntu, Windows 10, Windows 11. Также подключал SD карту через разные адаптеры. Утилита не хотела её видеть, при этом система показывала, что она есть (пробовал форматировать в FAT32, а также полностью удалял все разделы и оставлял её неразмеченной). В итоге на гитхабе я нашёл Python-скрипт blkenvflash.py от комьюнити, который позволяет из под линукса записать образ.

Вы можете попробовать воспользоваться SocToolkit (запускайте от root/админа), возможно у вас он заработает, официальная инструкция.

Про Linux

Далее в статье будут приводиться примеры кросс-компиляции кода для Luckfox, которая работает только под Linux (кросс-компилятор проприетарный и бинарников под Windows нет). Поэтому рекомендую сразу подготовить виртуальную машину/WSL/реальное устройство с Linux, если такого нет. Есть ещё альтернативный вариант - Google Colab, про него будет рассказано далее.

Как использовать blkenvflash.py:

Вам нужен компьютер с Linux и Python 3
SD карту необходимо полностью отформатировать, так чтобы на ней не было ни одного раздела, только неразмеченное пространство. Я для этого использую GParted
Скрипт blkenvflash.py необходимо поместить в директорию с распакованным образом операционной системы, которую вы собираетесь установить
Далее через команду lsblk посмотрите путь/название вашей SD карты в системе (если она автоматически примонтировалась - отмонтируйте её). В моём случае это /dev/sda1

Далее из директории с образом нужно запустить blkenvflash.py от рута:

sudo python3 blkenvflash.py /dev/sda1

Вместо /dev/sda1 подставляйте путь к вашей SD карте.

Если всё правильно, то через некоторое время скрипт успешно завершит свою работу.

Теперь можете вставлять SD карту в Luckfox Pico Mini:

Контактами к плате

Подавать питание можно через пин VBUS (5 Вольт) или через type c разъём (тоже 5 Вольт). Так же type c используется для взаимодействия с платой через компьютер (на Luckfox Pico нет wifi). После подачи питания вы увидите мигающий красный светодиод, судя по документации, он мигает не просто так, а служит индикатором активности платы.

Также в целях отладки вы можете подключить USB TTL переходник на пины UART2. Через него можно видеть все логи запуска системы, а также использовать виртуальный терминал. Но стоит обратить внимание на одну деталь - при использовании данного интерфейса FPS инференса нейросети на плате по какой - то причине упал на несколько единиц, поэтому использовать UART2 нужно только для отладки.

Кроме отладочного UART’а к плате можно подключиться следующими способами:

ADB (Android Debug Bridge)
Этот способ я использую как основной, так можно удобно через команды adb push и pull перекидывать файлы и директории с хоста на плату и наоборот.
На Linux он ставится легко:

sudo apt install adb # Debian Based (Ubuntu)
sudo pacman -Sy adb # Arch based
Далее если всё правильно установлено, то команда adb shell откроет терминал вашей платы.

Мы внутри...

Если adb выдаёт ошибки вида: “недостаточно привилегий”, то попробуйте выполнить следующие команды:

adb kill-server
sudo adb start-server
adb shell

Виртуальная сеть через USB

Данный способ позволяет через USB организовать локальную сеть между вашим компьютером и Luckfox Pico, также можно настроить раздачу интернета с вашего компьютера. Реализация такого подключения зависит от вашей операционной системы.

Настройка

Добавления swap

Swap

Изначально в официальном Buildroot образе нет swap раздела, а встроенной оперативной памяти не хватает для всех задач. Например, у меня не хотела запускаться Yolo (не хватало памяти для загрузки модели) при подключенной CSI камере (для неё, кстати, память (24 Mb) аллоцируется статически при запуске системы). Следующие команды добавят 7.8G свопа (используется оставшееся пространство на SD карте, поэтому у вас может быть другое значение):

mkfs.ext4 /dev/mmcblk1p8 # оставляйте всё по-умолчанию, нажимайте Enter в качестве ответа на вопросы
mkswap /dev/mmcblk1p8
swapon /dev/mmcblk1p8

Затем через команду free вы можете проверить, что swap добавился:

Вроде есть

Но swap нужно включать (swapon) после каждой перезагрузки, поэтому автоматизируем этот процесс через initd (эта система инициализации используется в официальном buildroot образе). Для этого переходим в директорию /etc/init.d и выполняем следующую команду:

echo '#!/bin/sh
case $1 in
    	start)
            	swapon /dev/mmcblk1p8
            	;;
    	stop)
            	;;
    	*)
            	exit 1
            	;;
esac' > S90autoswap

Или просто через текстовый редактор создаём файл S90autoswap с содержимым скрипта. Из коробки в buildroot образе есть только nano.

Далее выдаём права на запуск:

chmod +x ./S90autoswap

Теперь можно перезагружаться и проверять, что swap активировался автоматически.

Ещё немного оптимизации

Но проблема с нехваткой оперативной памяти добавлением swap’а полностью не решается. При подключении CSI камеры, иногда RKNN не хочет инициализировать yolo модель, выводя ошибку: “Can’t allocate memory”. Я устранил эту ошибку следующими двумя способами:

Перед запуском своих программ выполняю команду killall rkipc
Удалил авто-запуск разных ненужных мне программ

В официальном buildroot образе по умолчанию эти сервисы запускаются автоматически, вот их список (скрипты для их запуска находятся в /etc/init.d):

S49ntp - NTP может быть нужен, для некоторых сетевых запросов, но мне - нет
S50sshd - SSH я не использую, так как подключаюсь через ADB
S50telnet - аналогично ssh
S91smb - сетевые папки я не использую
S99python - Судя по коду внутри, скрипт нужен для автоматического запуска Python файлов из /root (boot.py, main.py), но это не системные файлы (их вообще нет). В общем, скрипт ничего полезного не делает

Для того, чтобы эти сервисы не запускались автоматически, я перенёс соответствующие скрипты в папку /oem/services_backup. Хотя вы можете их просто удалить. Также возможно отключить системные логи (syslogd, klogd), удалив их сервисы из автостарта, но я решил этого не делать.

Hello, World

Весь код под плату я буду писать на С/C++. В официальном buildroot образе предустановлен интерпретатор python, но учитывая ограничения по вычислительным ресурсам платы, нет смысла писать код под плату на питоне. Управление GPIO пинами через Python, ещё может быть и будет нормально работать, но пост-обработка результатов инференса yolo через Python - плохая идея.

Именно поэтому весь дальнейший код под одноплатник написан на C/C++. Все примеры в виде готовых структурированных проектов с Makefile/CMake (для некоторых) можно взять из моего github репозитория.

git clone https://github.com/ret7020/LuckfoxAI

Текущий пример находятся в Projects/HelloWorld.

Для компиляции вам нужен кросс-компилятор. Его бинарники есть только под Linux x86. Их можно скачать из официального github репозитория:

git clone https://github.com/LuckfoxTECH/luckfox-pico/

Кросс-компиляцию проекта можно проводить на Google Colab, здесь есть пример.

В директории tools/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf/bin находятся бинарники нужных программ (в первую очередь, нас интересуют gcc и g++). Далее для компиляции моих примеров и примеров из репозитория rknn_model_zoo нужно установить переменную среды с путём к директории кросс-компилятора:

export GCC_COMPILER=/home/stephan/Downloads/LuckFox/luckfox-pico/tools/linux/toolchain/arm-rockchip830-linux-uclibcgnueabihf/bin/arm-rockchip830-linux-uclibcgnueabihf

Обратите внимание на то, что в конце пути после последнего / добавляется ещё arm-rockchip830-linux-uclibcgnueabihf

Исходный код примера очень простой, стандартный HelloWorld:

#include <stdio.h>

int main()
{
    printf("Hello, world!\nFrom luckfox...\n");
    return 0;
}
/* Можете использовать iostream cout, вместо stdio printf, кому как нравится, 
    но не забывайте компилировать через компилятор C++ (например, g++)*/

Makefile для сборки тоже очень простой:

build:
    mkdir -p bin
    echo Using: ${GCC_COMPILER}
    ${GCC_COMPILER}-g++ main.cpp -o ./bin/hello

deploy:
    adb push ./bin/hello /oem/hello

Команда build собирает итоговый бинарник в ./bin/hello, используя указанный в переменных среды кросс-компилятор g++.

Команда deploy с помощью adb перекидывает бинарник в директорию пользователя (/oem) на Luckfox Pico.

Управление GPIO пинами

Не осциллограф конечно, но что поделать

Рассмотрим взаимодействие с пинами через терминал, а также программным управлением. У нас есть возможность управлять пинами через линуксовую абстракцию. Схема управления следующая: сначала экспортируем пин и устанавливаем его на вход/выход (напоминает pinMode в Arduino), затем записываем/считываем из него значение, освобождаем/unexport.

Ещё раз пинаут

На схеме пины имеют названия следующего вида: GPIO1_D0_d. Это название необходимо интерпретировать следующим образом:

GPIO{bank}_{group}{X}_d

Для того, чтобы рассчитать итоговый ID пина, с которым мы будем работать из под линукса нужно воспользоваться следующей формулой:

pin = bank * 32 + (group * 8 + X)

Исходя из этого, ID правого нижнего пина (GPIO1_D0_d) будет равен 56. Следующий пример показывает управление пином через терминал:

# Экспортируем в userspace (у нас появится директория gpio56 в /sys/class/gpio)
echo 56 > /sys/class/gpio/export

# Переводим его в режим “выхода”
echo out > /sys/class/gpio/gpio56/direction

# Записываем значение HIGH (1), 3.3 В, называйте как хотите
echo 1 > /sys/class/gpio/gpio56/value

# Или “выключаем” его
echo 0 > /sys/class/gpio/gpio56/value

# В конце делаем unexport
echo 56 > /sys/class/gpio/unexport

Касательно unexport стоит заметить, что состояние пина при этом не сбрасывается, оно остаётся таким же каким и было установлено.

Теперь продемонстрирую программу, которая управляет состоянием пина из кода. Фактически она делает всё тоже - самое, записывая значения в соответствующие файлы. Код программы в репозитории - Projects/GPIO.

#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

int main()
{
    int bank = 1;
    char group = 2;
    int X = 0;
    int linuxPin = 0;
    char result[2];
    printf("Enter pin from pinout, like example: 1 B 2 stands for GPIO1_B2_d in pinout: ");
    scanf("%d %c %d", &bank, &group, &X);
    group -= 'A';
    linuxPin = bank * 32 + (group * 8 + X);
    printf("Set to (1 or 0)?:");
    scanf("%s", &result);
    printf("Pin %d will be set to %s\n", linuxPin, result);

    // Export pin to userspace
    FILE *exportFile = fopen("/sys/class/gpio/export", "w");
    if (exportFile == NULL)
    {
   	 perror("Failed to open GPIO export file, maybe it is alreay exported or invalid?");
   	 return -1;
    }
    fprintf(exportFile, "%d", linuxPin);
    fclose(exportFile);

    // Set to output
    char directionPath[50];
    snprintf(directionPath, sizeof(directionPath), "/sys/class/gpio/gpio%d/direction", linuxPin);
    FILE *directionFile = fopen(directionPath, "w");
    if (directionFile == NULL)
    {
   	 perror("Failed to open GPIO direction file, check export");
   	 return -1;
    }
    fprintf(directionFile, "out");
    fclose(directionFile);

    // Write value
	char valuePath[50];
	snprintf(valuePath, sizeof(valuePath), "/sys/class/gpio/gpio%d/value", linuxPin);
	FILE *valueFile = fopen(valuePath, "w");
	if (valueFile == NULL) {
    	perror("Failed to open GPIO value file");
    	return -1;
	}


    fprintf(valueFile, result);
	fflush(valueFile);


    // Release pin
	fclose(valueFile);
	FILE *unexportFile = fopen("/sys/class/gpio/unexport", "w");
	if (unexportFile == NULL) {
    	perror("Failed to open GPIO unexport file");
    	return -1;
	}
	fprintf(unexportFile, "%d", linuxPin);
	fclose(unexportFile);


    return 0;
}

Сначала вам нужно ввести пин в виде 1 D 0 (означает GPIO1_D0). Далее ввести значение, которое хотите записать в пин.

Не всеми пинами можно управлять из официального образа, чтобы настроить каждый пин используется dtb (Device Tree Binary), его изменение требует пересборки ядра. Подробнее можно прочитать в документации.

Программируем UART

Судя по pinout платы, у Luckfox Pico есть: UART2, UART3, UART4.

UART2 используется для отладки, поэтому мы не можем его сконфигурировать (если речь идёт про официальный Buildroot образ, возможно, через dtb uart2 можно переназначить). В официальном Buildroot образе UART3 не настроен, его необходимо вручную сконфигурировать в dtb и пересобрать ядро. Исходя из вышесказанного, проще всего воспользоваться UART4. Его удобно настроить через luckfox-config (до raspi-config он не дотягивает).

luckfox-config

Стрелочками выбираем второй пункт “Advanced Configuration”

Advanced options

UART

Выбираем единственный доступный UART4_M1 и переключаем его состояние на 1, enabled

UART4_M1

enable

Теперь можно выйти из конфигуратора. Командой luckfox-config show можно в удобной форме посмотреть текущую конфигурацию пинов платы:

luckfox-config show

Напротив UART4 для пинов GPIO1_C4 и GPIO1_C5 (10 и 11 номер на плате) будут стоять звёздочки, которые означают, что пины сконфигурированы под UART.

Если всё сделано правильно, то в /dev должен появится ttyS4:

/dev/ttyS4

Для проверки того, что всё работает, к пинам можно подключить реальное устройство, которое работает по UART или TTL переходник.

Пример кода отправит сообщение “ping\n”. Далее, если в ответ получит “e”, то завершит работу, иначе продолжит отправлять "ping”. Такой простой демонстрации будет достаточно.

Luckfox -> TTL (3.3V)

Для тестирования я использовал UART TTL переходник и программу CuteCom.

Пример кода для обмена данными по UART:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <termios.h>
#include <unistd.h>

#define UART_PATH "/dev/ttyS4"

int main()
{
    // Init part
    char serialPort[] = UART_PATH;
    char txBuf[] = "ping\n";
    struct termios tty;
    ssize_t writeLen;
    int serialFd;
    char rxBuffer[256];
    int bytesRead;

    serialFd = open(serialPort, O_RDWR | O_NOCTTY);

    memset(&tty, 0, sizeof(tty));
    

    // Setting baud
    cfsetospeed(&tty, B9600);
    cfsetispeed(&tty, B9600);

    // Generic flags
    tty.c_cflag &= ~PARENB;
    tty.c_cflag &= ~CSTOPB;
    tty.c_cflag &= ~CSIZE;
    tty.c_cflag |= CS8;
    
    while (1){
   	 writeLen = write(serialFd, txBuf, sizeof(txBuf));
   	 if (writeLen > 0)
   	 {
   		 bytesRead = read(serialFd, rxBuffer, sizeof(rxBuffer));
   		 if (bytesRead > 0) {
   			 rxBuffer[bytesRead] = '\0';
   			 printf("Recieved: %s", rxBuffer);
   			 if (rxBuffer[0] == 'e') {
   				 printf("Exit\n");
   				 return 0;
   			 }
   		 }
   	 }
    }

    return 0;
}

Скорость обмена - 9600 бод, остальные параметры “стандартные”. Под “стандартными” я имею в виду следующие:

CuteCom

Программируем SPI

Данный протокол может передавать данные с бОльшей скоростью и может быть полезен при подключении Luckfox к другим контроллерам в общей системе.

SPI, так же как и UART, необходимо сконфигурировать через luckfox-config. На Luckfox пользователю нормально доступна только одна SPI шина (вторая используется Flash/SD памятью).

Конфигурация очень похожа на конфигурацию UART:

Advanced Options -> SPI -> SPI0_M0 -> 1 enable

Далее вас попросят ввести частоту работы шины в Герцах, максимальная - 1 МГц, поэтому вводим 1000000 и нажимаем OK. Далее, нажимая Cancel, выходим из конфигуратора.

Если всё настроено правильно, то в /sys/bus/spi/devices/ должна появиться директория spi0.0 (нулевое устройство на нулевой шине). Подробнее про настройку SPI при использовании нескольких SPI устройств, подключенных к одной шине (выбор разных Chip Select пинов) можно прочитать в официальной документации, там тоже не обойдётся без сборки dtb.

Я же покажу, как использовать Luckfox Pico в качестве Master платы, подключенной к Slave Arduino Nano.

Важное примечание

Luckfox Pico и Arduino Nano имеют разное логическое напряжение на gpio пинах. У Luckfox - это 3.3 В, у Arduino Nano - 5 В. Поэтому просто так подключать их друг - к другу нельзя (точнее можно, но есть большой риск спалить устройство с меньшим напряжением). Поэтому соединять их нужно через конвертер логических уровней. Подробнее про связь МК и одноплатника по SPI можете прочитать здесь.

Slave код на Arduino Nano:

#include <SPI.h>

bool cnt = 0;

void setup()
{
  Serial.begin(9600);
  pinMode(SS, INPUT_PULLUP);
  pinMode(MOSI, OUTPUT);
  pinMode(SCK, INPUT);
  SPCR |= _BV(SPE);
  SPI.attachInterrupt();
}

void loop(void)
{
  if (cnt != 0) {
	Serial.println("All data recieved");
	cnt = 0;
  }
 
}

ISR (SPI_STC_vect)
{
  Serial.println("New byte recieved");
  Serial.println(SPDR);
  cnt = 1;
}

Master код на Luckfox (в репозитории находится в Projects/SPITest):

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <fcntl.h>
#include <unistd.h>
#include <linux/spi/spidev.h>
#include <sys/ioctl.h>

#define SPI_DEVICE_PATH "/dev/spidev0.0"

int main()
{
    int spi_file;
    uint8_t tx_buffer[1] = {20};
	uint8_t rx_buffer[1];

    // Open the SPI device
    if ((spi_file = open(SPI_DEVICE_PATH, O_RDWR)) < 0)
    {
   	 perror("Failed to open SPI device");
   	 return -1;
    }

    uint8_t mode = SPI_MODE_0;
    uint8_t bits = 8;
    if (ioctl(spi_file, SPI_IOC_WR_MODE, &mode) < 0)
    {
   	 perror("Failed to set SPI mode");
   	 close(spi_file);
   	 return -1;
    }

    struct spi_ioc_transfer transfer = {
   	 .tx_buf = (unsigned long)tx_buffer,
   	 .rx_buf = (unsigned long)rx_buffer,
   	 .len = sizeof(tx_buffer),
   	 .speed_hz = 1000000,  // SPI speed in Hz
   	 .delay_usecs = 0,
   	 .bits_per_word = 8,
    };

    if (ioctl(spi_file, SPI_IOC_MESSAGE(1), &transfer) < 0)
    {
   	 perror("Failed to perform SPI transfer");
   	 close(spi_file);
   	 return -1;
    }

    close(spi_file);

    return 0;
}

Это максимально простой пример, который ничего полезного не делает (просто передаёт один байт с Luckfox на Arduino), но так как статья далеко не про SPI, считаю, что этого достаточно.

Использование OpenCV

Для маломощных устройств есть специальный OpenCV Mobile (форк OpenCV), в нём нет некоторых компонентов, но зато он более производительный, чем классический OpenCV. Изучить какие модули включены в Mobile версию можно в официальном GitHub репозитории проекта.

В моём репозитории демонстрация OpenCV Mobile находится в Projects/OpenCVMobile

Для простоты подключения библиотек используется система сборки CMake. Содержимое CMakeLists.txt

cmake_minimum_required(VERSION 3.5)

project(OpenCVMobile)

set(CMAKE_CXX_STANDARD 11)

SET(CMAKE_C_COMPILER "$ENV{GCC_COMPILER}-gcc")

SET(CMAKE_CXX_COMPILER "$ENV{GCC_COMPILER}-g++")

SET(CMAKE_C_LINK_EXECUTABLE "$ENV{GCC_COMPILER}-ld")

set(CMAKE_SYSTEM_PROCESSOR arm)

set(OpenCV_DIR "${CMAKE_CURRENT_SOURCE_DIR}/libs/opencv-mobile-4.10.0-luckfox-pico/lib/cmake/opencv4")

find_package(OpenCV REQUIRED)

include_directories(${OpenCV_INCLUDE_DIRS})

add_executable(OpenCVMobile main.cpp)

target_link_libraries(OpenCVMobile ${OpenCV_LIBS})

В нём указываются пути к кросс-компиляторам и путь к файлам библиотеки OpenCVMobile. На момент написания актуальная версия 4.10.0. В директории libs проекта находится скрипт download.sh, который автоматически скачает и распакует эту версию. Выполнить этот башник необходимо до начала сборки проекта.

Тестовый код для OpenCV просто создаёт и сохраняет 3 изображения:

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <stdio.h>

int main()
{
    printf("Generating images test");
    cv::Mat redImg(480, 640, CV_8UC3, cv::Scalar(0, 0, 255));
    cv::imwrite("red.jpg", redImg);

    cv::Mat greenImg(480, 640, CV_8UC3, cv::Scalar(0, 255, 0));
    cv::imwrite("green.jpg", greenImg);

    cv::Mat blueImg(480, 640, CV_8UC3, cv::Scalar(255, 0, 0));
    cv::imwrite("blue.jpg", blueImg);
    return 0;
}

Для сборки проекта необходимо выполнить следующие команды в корне проекта (Projects/OpenCVMobile):

mkdir build
cd build
cmake ..
make

В итоге в директории ./build вы получите бинарник с названием OpenCVMobile. Его надо скопировать на Luckfox и запустить:

adb push OpenCVMobile /oem
adb shell
cd /oem
./OpenCVMobile

После завершения работы, в директории /oem (рядом с бинарником программы) на Luckfox вы получите 3 файла с названиями: red.jpg, blue.jpg, green.jpg, которые являются изображениями соответствующих названиям цветов.

CSI камера

Плата не поддерживает высококачественные CSI камеры. В характеристиках заявлено чтение в 30 fps 4MP (это допустимый максимум) камеры. Поддерживаются только камеры на основе SC3336. На Aliexpress такая камера только одна:

Написано: "специально для Luckfox"

Сенсор	SC3336
CMOS	1/2.8”
Разрешение	3MP (2304x1296)
Затвор	Глобальный
Апертура	F2.0
Дисторсия	<33%
FOV	98.3°
Фокусное расстояние	3.95mm
Автофокусировка	нет

Отсутствие автоматической фокусировки расстраивает, но нет так нет.

Тестируем камеру

Сначала нужно определить к какому устройству (/dev/video*) подключилась физическая камера. Определить это можно с помощью команды:

v4l2-ctl --list-devices

В разделе rkisp_mainpath (platform:rkisp-vir0) будут отображены устройства привязанные к CSI камере.

rkisp_mainpath (platform:rkisp-vir0):

/dev/video11

Нас интересует самое первое устройство, у меня это /dev/video11.

Выше я показал пример запуска OpenCV Mobile, через него я и предлагаю получать кадры с камеры. При этом из OpenCV Mobile убран модуль opencv_videoio, который добавляет возможность сохранять видео с камеры нужным кодеком (cv::VideoWriter). Поэтому мы будем просто сохранять каждый новый кадр в один и тот же файл (не стоит злоупотреблять, можно убить SD карту).

Код этого примера в репозитории находится в Project/OpenCV_CSI_Camera.

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <stdio.h>
#include <chrono>

// OpenCV Mobile doesn't support VideoWriter

#define DEVICE_PATH 11
#define VIDEO_RECORD_FRAME_WIDTH 640
#define VIDEO_RECORD_FRAME_HEIGHT 640

double avgFps = 0.0;
int framesRead = 0;
int main()
{
	// Camera init
	cv::VideoCapture cap;
	cap.set(cv::CAP_PROP_FRAME_WIDTH, VIDEO_RECORD_FRAME_WIDTH);
	cap.set(cv::CAP_PROP_FRAME_HEIGHT, VIDEO_RECORD_FRAME_HEIGHT);
	cap.open(DEVICE_PATH);

	cv::Mat bgr;

	// "Warmup" camera
	for (int i = 0; i < 5; i++){cap >> bgr;}

	for (int i = 0; i < 25 * 10; i++){
		std::chrono::steady_clock::time_point begin = std::chrono::steady_clock::now();
		cap >> bgr;
		std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
		printf("Get frame - OK\n");
		double fps = 1 / std::chrono::duration<double>(end - begin).count();
		avgFps += fps;
		framesRead++;
		if (bgr.empty()) break;
		cv::imwrite("captured.jpg", bgr);
	}
	printf("AVG FPS: %lf\n", avgFps / framesRead);

	cap.release();

	return 0;
}

Перед запуском программы рекомендую выполнять ещё команду:

killall rkipc

Код очень простой, используются стандартные методы OpenCV.
“Прогрев” камеры добавил по привычке, в целом от него нет смысла на этой камере. Код измеряет FPS чтения изображений с камеры. Для изображений размером 640x640 выходит около 39 FPS, для изображений 320x320 значительного прироста нет. Но, вот если вы попытаетесь читать изображения 1920x1080, то FPS будет очень низким. В любом случае, для инференса Yolo будет достаточно и 640x640.

Запуск Yolo

Немного аналитики

Rockchip любезно делятся готовым кодом для запуска и конвертации различных моделей yolo (и не только). На данный момент в rknn_model_zoo есть исходники для 8 версий yolo:

yolov5, yolov5_seg, yolov6, yolov7, yolov8, yolov8_seg, yolov10, yolox

При этом не все эти примеры запускаются на Luckfox Pico, некоторые компилируются под RV1103, но при запуске не могут прочитать конфиг модели или ссылаются на нехватку методов в RKNN (yolov10 по этой причине не хочет запускаться). Я составил следующую таблицу, которая для базовой yolo модели (обученной на COCO) показывает средний FPS в детекции объектов на изображениях 640x640.

Модель	~ FPS (640x640)
Yolov5	13.5
Yolov6	14.5
Yolov7	13
Yolov8	11
Yolox Nano	25
Yolox Tiny	18

Изначально планировалось провести подобный анализ для изображений 320x320, но по итогу использовались только изображения 640x640. О том почему 320x320 оказались неподходящими будет написано далее.

Судя по бенчмарку от Ultralytics, yolov8 работает быстрее всех предыдущих, но этот график описывает скорость инференса на A100, что явно намного мощнее нашего рантайма.

Взято из репозитория ultralytics/ultralytics_yolov8

Также рассмотрим бенчмарк из репозитория rknn_model_zoo, полную таблицу вы можете посмотреть здесь. К сожалению в ней нет информации о процессорах RV1103/RV1106, но я проанализирую относительный FPS между различными моделями в контексте одного процессора. Просто так переносить результаты одного процессора на другой не совсем правильно, но изучить чужие бенчмарки тоже полезно. Так, yolov5n работает быстрее yolov8n на всех представленных в таблице процессорах. Из таблицы видно, что самая быстрая модель - yolov6.

Мои замеры показали (на RV1103), что yolov6 быстрее yolov5, но не так сильно, как на других процессорах из таблицы ниже.

RKNN Benchmark

Также есть бенчмарк от Qengineering на процессорах большей мощности - RK3588/66/68

Qengineering Benchmark

Модели yolov5_seg и yolov8_seg выполняют семантическую сегментацию изображений, а остальные - детектирование объектов. Сегментация (с точки зрения вычислительных ресурсов, а значит и временных) сложнее, поэтому пока не будем её рассматривать.

Но приведённая выше аналитика основывается на COCO моделях и других рантаймах, поэтому эти результаты не очень интересны в контексте текущей задачи. Куда интереснее узнать mAP и FPS на кастомной модели, запущенной на Luckfox Pico Mini.

Экспорт и запуск

Перед запуском yolo на Luckfox необходимо экспортировать её в формат rknn, а перед экспортированием в rknn, необходимо экспортировать оригинальную модель в ONNX (но не совсем обычный). Я опишу процесс экспорта на примере Yolov8. Самые свежие версии модели (Yolov10) на данном процессоре (RV1103) не поддерживаются, им не хватает каких - то методов из библиотеки RKNN.

Также я пробовал обучать и запускать yolov5, при этом экспортированная модель не могла адекватно находить боксы объектов. Она правильно определяла факт наличия объекта, но при этом боксы были совсем неверные. Ранее я показывал, что инференс Yolov8 занимает больше времени, чем у Yolov5, но это было на датасете COCO из 80 классов. При этом кастомные yolov5 и yolov8, обученные на несколько классов работают примерно с одинаковой скоростью (на Luckfox Pico, возможно на других рантаймах/вычислительных модулях ситуация будет другой). В любом случае в репозитории вы можете найти проекты с названием вида: “HelloYolovX”, в них есть примеры запуска разных версий yolo. Также можете изучить репозиторий rknn_model_zoo, в нём собраны примеры запуска различных моделей через RKNN (не только CV, есть LLM и аудио обработка). Но я решил остановиться на Yolov8.

Если вам нужно запустить базовую модель Yolov8 (обученную на COCO), то вы можете скачать уже экспортированную в RKNN модель отсюда.

Её можно сразу запускать на Luckfox, без необходимости что - либо экспортировать. Но скорее всего устройство планируется использовать для решения более узкой задачи (подробнее об этом написано в заключении), чем детекцию 80-ти различных объектов, тем более, как было замечено в предыдущей статье про yolo, модель, обученная на меньшее количество классов, имеет меньше параметров, вследствие чего инференс происходит быстрее.

Тем более, исключительно по моему опыту, COCO датасет хорошо использовать для быстрого тестирования/сравнения моделей, но в реальности используется “склеивание” своих датасетов с готовыми. И нет необходимости в детектировании такого большого количества классов, как в COCO.

Далее я опишу процесс обучения и запуска на Luckfox Pico Mini модели yolov8 на кастомном датасете для детекции сопла от паяльного фена и модуля ESP-01.

Для экспорта модели нужна x86 система под управлением Linux. Для упрощения процесса я подготовил ноутбук под Google Colab, поэтому для минимизации количества проблем связанных с особенностями вашей системы (операционная система, версии пакетов и т.д.) рекомендую пользоваться коллабом. А так, на Arch Linux, RKNN_Toolkit2 устанавливается без проблем и работает без нареканий.

Немного про датасет

Скриншот из Roboflow

В моём датасете всего 2 класса: сопло от паяльного фена и WiFi модуль ESP-01.

Пример размеченной фотографии сопла фена

Пример размеченной фотографии ESP-01

Я собирал датасет сразу на CSI камеру, подключенную к Luckfox. В репозитории в директории Project/RecordDataset находится небольшая программа для сбора датасета.

Принцип её работы следующий:

Сначала вы вводите название/id класса, изображения для которого вы собираете. Рядом с бинарником программы должна быть директория с названием этого класса. Далее, нажимая Enter, программа сохраняете очередной кадр в эту директорию.

Датасет я размечал через Roboflow и экспортировал с x3 аугментацией. Хочется обратить внимание на низкое качество датасета. Разметку проводил с помощью инструмента Smart Polygon внутри Roboflow. С его помощью можно очень быстро в полуавтоматическом режиме выделить маску объекта. Качество очень сильно зависит от освещения/теней и сложности геометрии объекта. Я собирал датасет в демонстрационных целях, поэтому мне не нужно очень качественно детектировать боксы объектов. Разумеется, чтобы улучшить качество работы модели необходимо собрать датасет по-больше и аккуратнее отнестись к разметке.

При генерации датасета использовал следующие параметры аугментации:

Название	Аргументы
Поворот на 90°	CW, CCW, зеркально
по Hue (оттенок)	[-18°; +18°]
Saturation (насыщенность)	[-34°; +34°]
Яркость	[-26°; +26°]
Blur (размытие)	1.8px

И вот небольшая аналитика по датасету:

Без аугментации

В основном в кадре только один объект

После применения аугментации

Датасет далёк от идеала, но как было сказано ранее, такого качества достаточно для поставленной цели.

Обучение и экспорт модели

Общий пайплайн "от датасета к модели, работающей на Luckfox" (и вообще на всех NPU в процессорах Rockchip) выглядит так:

Пайплайн от датасета к инференсу на Luckfox

Для конвертации Yolo модели в ONNX необходимо воспользоваться кастомной Yolo от RKNN. Из коробки Yolo умеет экспортировать в ONNX, но кастомные версии RKNN проводят ряд дополнительных оптимизаций, например:

Yolov8 - Change output node, remove post-process from the model. (post-process block in model is unfriendly for quantization)
Yolov8 - Remove dfl structure at the end of the model. (which slowdown the inference speed on NPU device)
Yolov8 - Add a score-sum output branch to speedup post-process.

Yolov10 - Removed the post-processing structure from the output to improve inference performance and quantization precision, as the original post-processing operators were not friendly to these aspects (Modify ultralytics/nn/modules/head.py).
Yolov10 - To enhance inference performance, the DFL (Distribution Focal Loss) structure has been moved to the post-processing stage outside of the model (Modify ultralytics/nn/modules/head.py).
Yolov5 - Optimize focus/SPPF block, getting better performance with same result
Yolov5 - Change output node, remove post_process from the model. (post process block in model is unfriendly for quantization)

Так же при таком экспорте из модели убирается пост-процессинг (в него, например, входит NMS), который надо будет выполнять отдельно на CPU после инференса.

Весь пайплайн я реализовал в Jupyter ноутбуке, который работает в Google Colab. Ниже будет рассказано, как им пользоваться. Для начала запустите Runtime с GPU (T4).

Далее несколько ячеек выполняют базовую настройку окружения: устанавливается ultralytics, монтируется Google диск, распаковывается датасет.

Настройка окружения

Если вы хотите просто повторить эксперимент на моём датасете, то скачать его можно отсюда. Не забудьте указать правильное название и путь к архиву. Он был экспортирован с Roboflow в формате “для Yolov8”. Также, если у вас уже есть веса модели, то вы можете пропустить шаги обучения.

Теперь в файле конфигурации датасета data.yaml нужно поменять пути к файлам с изображениям на абсолютные (возможно обучение запустится без этого):

train: /content/nozzle_data/train/images
val: /content/nozzle_data/valid/images
test: /content/nozzle_data/test/images

Далее идёт обычный процесс обучения yolov8:

25 эпох, без тюнинга гиперпараметров

Результаты обучения следующие:

Результаты обучения

Судя по матрице ошибок ещё есть куда стремится, но простое увеличение количества эпох обучения не решает проблему, а приводит к переобучению/остановке по Early Stop. Нужно более детально настраивать гиперпараметры.

Но, зная результат её работы на Luckfox Pico, могу сказать, что даже такая, плохо обученная модель, выдаёт удовлетворительный результат.

Теперь приступим к экспорту, обученной модели, в ONNX. Для этого сначала скачаем специальный форк yolov8:

Теперь нам надо заменить путь с дефолтной модели к нашей (обученной ранее) в этом файле:

/content/ultralytics_yolov8/ultralytics/cfg/default.yaml

Это можно сделать вручную:

Слева есть файловый менеджер через который можно открыть файл

После этого можно начинать экспорт модели в ONNX.

Примерно такой результат должен получится

Теперь ONNX модель необходимо сконвертировать в RKNN.

Для этого сначала установим RKNN-Toolkit2 для версии Python 3.10 (в коллабе):

Скачивание и установка whl нужной версии

Через импорт rknn можно убедиться, что всё установилось. Теперь нужно скачать репозиторий rknn_model_zoo. Вообще, в нём очень много примеров запуска и конвертации различных моделей под RKNN, но нам из него нужен только экспорт yolov8.

При экспорте модели под RV1103 мы обязаны её квантизировать в int8, потому что npu данного процессора не умеет обрабатывать fp модели. Процесс квантизации обычно происходит с, так называемой калибровкой, (можно просто урезать разрядность весов, но это приведёт к сильному падению точности). Для калибровки необходимо использовать часть (или все) изображения из датасета.

Рекомендуется использовать не менее 20 изображений (кто - то считает, что чем больше - тем лучше), но я буду калибровать на всём трейне датасета, это дольше, но возможно итоговая модель будет работать чуть - лучше и негативный эффект квантизации будет минимальным.

Для калибровки нам необходимо сгенерировать список изображений с абсолютными путями к ним. Для этого есть специальная Python ячейка:

Генерация файла конфига квантизции

Не забудьте поменять путь к датасету на свой. Если вы не хотите калибровать на всём датасете, то просто можете взять срез от files (files[:30]).

Теперь нужно отредактировать файл /content/rknn_model_zoo/examples/yolov8/python/convert.py

В нём укажем путь к списку файлов для калбировки:

И наконец, запускаем экспорт в RKNN:

Не забудьте поменять путь к своим весам

i8/u8

В аргументах запуска мы указываем путь к onnx весам, процессор, и тип квантизации (i8 или u8). Судя по всему - i8 ~ int8, а u8 ~ unsigned int8. Но скорость и качество работы моделей получается одинаковым, вне зависимости от выбранной квантизации. По-умолчанию для rv1103 выбирается i8.

Квантизация проходит на процессоре, поэтому наличие видеокарты никак не ускорит этот процесс, придётся подождать (особенно, если для калибровки используется много изображений).

В итоге, в директории ../model появится yolov8n.rknn. На этом питон заканчивается, ~~начинаются segmentation fault~~, модель готова, теперь её нужно деплоить на Luckfox.

Итоговый проект по запуску кастомного Yolov8 детектора с камеры на Luckfox я залил в отдельный репозиторий.

В src/main.cc в MODEL_INPUT_SIZE указывается размер входного изображения. Так же в model/labels.txt прописывается мэппинг id класса к его текстовому названию. Важно не забыть указать правильное количество классов (background не считается, только объекты, в моём случае - это 2) в файле include/postprocess.h в дефайне OBJ_CLASS_NUM, иначе ничего работать не будет, будут только Segmentation Fault.

Собирается проект стандартно:

git clone https://github.com/ret7020/Yolov8CustomNPU
export GCC_COMPILER=ПУТЬ/arm-rockchip830-linux-uclibcgnueabihf
mkdir build
cd build
cmake ..
make install

Далее копируем всю папку bin на Luckfox (через adb это делает так):

adb pull ../bin/ /oem/yolov8_inference

И на Luckfox запускаем:

killall rkipc
./HelloYolov8 model/yolov8.rknn

И оно работает. Разные классы отрисовываются боксами разных классов.

Далее я попробовал обучить модель на изображениях 320x320, но результат детекции на Luckfox был отвратительный:

Возможно, необходимо собрать датасет значительно больше и тогда получится добиться адекватных результатов детекции. Но на самом деле в этом нет смысла, так разницы в времени инференса практически нет. Обе модели выдают примерно по 15 FPS. Я постараюсь разобраться почему так происходит, так как для меня это немного странно.

Теперь необходимо сравнить mAP модели до квантизации и экспорта с итоговой моделью, которая работает на Luckfox.

mAP для Luckfox модели подсчитывался по следующей схеме:

Модель обрабатывала 83 изображения valid части датасета
Для каждого входного изображения записывался файл с результатами детекции - классы и соответствующие им баундинг боксы.
Далее через python скрипт происходил просчет mAP-50/mAP-50-95

Результаты валидации модели до конвертации (сразу после обучения):

Class	Images	Instances	Box_P	Box_R	Box_mAP50	Box_mAP50-95
all	83	87	0.987	0.973	0.977	0.935
esp01	40	41	0.996	0.976	0.975	0.918
nozzle-8hmp	46	46	0.978	0.97	0.978	0.952

Матрица ошибок

Пример детекции на одном из батчей:

Хорошо детектит

Для замера метрик на Luckfox я написал следующую программу:

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "yolov8.h"
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <sys/types.h>
#include <dirent.h>

#define MODEL_INPUT_SIZE 640


int main(int argc, char **argv)
{
	if (argc != 4)
	{
    	printf("%s <model_path> <val_path_dir> <results_path>\n", argv[0]);
    	return -1;
	}

	const char *model_path = argv[1];
	const char *val_path = argv[2];
	const char *results_path = argv[3];

	int ret;
	rknn_app_context_t rknn_app_ctx;
	memset(&rknn_app_ctx, 0, sizeof(rknn_app_context_t));

	init_post_process();

	ret = init_yolov8_model(model_path, &rknn_app_ctx);
	if (ret != 0)
	{
    	printf("init_yolov8_model fail! ret=%d model_path=%s\n", ret, model_path);
	}

	cv::Mat bgr640(MODEL_INPUT_SIZE, MODEL_INPUT_SIZE, CV_8UC3, rknn_app_ctx.input_mems[0]->virt_addr);
	DIR* dirp = opendir(val_path);
	struct dirent * dp;
	FILE *resWriteptr;

	while ((dp = readdir(dirp)) != NULL) {
    if (!strcmp(dp->d_name, "..") || !strcmp(dp->d_name, ".")) continue; // Skip ../ path

    char absFilePath[128];
    sprintf(absFilePath, "%s/%s", val_path, dp->d_name);
    cv::Mat img = cv::imread(absFilePath);
    	cv::resize(img, bgr640, cv::Size(MODEL_INPUT_SIZE, MODEL_INPUT_SIZE), 0, 0, cv::INTER_LINEAR);
    	rknn_run(rknn_app_ctx.rknn_ctx, nullptr);
    	object_detect_result_list od_results;

    	post_process(&rknn_app_ctx, rknn_app_ctx.output_mems, 0.25, 0.45, &od_results);
    	printf("%d\n\n", od_results.count);
    	for (int i = 0; i < od_results.count; i++)
    	{
        	object_detect_result *det_result = &(od_results.results[i]);
        	int x1 = det_result->box.left;
        	int y1 = det_result->box.top;
        	int x2 = det_result->box.right;
        	int y2 = det_result->box.bottom;
   	printf("IMG: %s -> x1=%d1 y1=%d x2=%d y2=%d class: %d\n", dp->d_name, x1, y1, x2, y2, det_result->cls_id);
   	char resFilePath[256];
   	char fileName[128];
   	strcpy(fileName, dp->d_name);
   	//char fileName[128];
   	fileName[strlen(fileName) - 4] = 0;
   	sprintf(resFilePath, "%s/%s.txt", results_path, fileName);
   	resWriteptr = fopen(resFilePath, "w");
   	fprintf(resWriteptr, "%s %lf %d %d %d %d\n", coco_cls_to_name(det_result->cls_id), det_result->prop, x1, y1, x2, y2);


   	fclose(resWriteptr);
    	}
    printf("----------\n");
	}

	return 0;
}

Суть её работы заключается в следующем: для каждого изображения из директории (в данном случае из images/test) проводится инференс, а результаты записываются в txt файлы в отдельной директории с названием, основанном на названии изображения. Содержимое файла имеет следующий формат:

<class_name> <confidence> <x1 (left)> <y1 (top)> <x2 (right)> <y2 (bottom)>

Причём, хочу обратить внимание, что координаты записываются в ненормализованном виде (Т.е. их диапазон [0;640) px). Это сделано так, потому что скрипт для подсчёта mAP тоже использует ненормализованные координаты.

Скрипт для подсчёта mAP я взял из этого репозитория. В итоге mAP сильно не ухудшился:

mAP50 = 0.946

mAP95 = 0.903

Необходимо учитывать небольшой размер тестовой выборки (но размечать ещё один тестовый датасет я очень не хотел). По-хорошему модели надо было сравнивать друг с другом без замера оценки с ground-truth. Т.е. сравнивать насколько различаются показания одной относительно другой. В таком случае мы оцениванием не правильность работы модели, а то насколько результаты квантизированной модели отличаются от обычной, что может быть полезнее в случае заведомо плохо обученной модели.

Но в целом, можно сделать вывод, что квантизация не сильно повлияла на работу модели в плане точности детекции.

Связь с внешним миром

На плате нет радио-трансивера, а отправка данных по Ethernet не всегда доступна. Комьюнити разработало адаптер для RTL8723bs. Но он подключается в слот для SD карты, соответственно всю систему придётся уместить на flash, которого может быть недостаточно.

Поэтому я приведу примеры взаимодействия платы с модулем SIM800L(и подобными). Я решил не писать linux драйвер, который даст возможность использовать адаптер внутри всей системы для доступа к интернету, в этом мало смысла.

SIM800L

На Aliexpress есть различные версии модулей на основе SIM800L (и похожих), все они управляются по UART и протокол AT команд очень похож. Я отлаживал свой код на “красном модуле”.

UART SIM800

Библиотека позволяет инициализировать модуль и совершать GET/POST HTTP запросы. Для упрощения интеграции в другие проекты библиотека реализована в одном хэдер файле. В репозитории она находится в Projects/SIM800.

sim800.h - код библиотеки, а main.cpp - пример использования.

Например, вот так можно реализовать отправку сообщений в Telegram от имени бота. Не забудьте поменять APN, в зависимости от вашего оператора:

#include <stdio.h>
#include "sim800.h"

// Config

#define MODULE_UART "/dev/ttyS4"
#define MODULE_APN "INTERNET.MTS.RU"


int main()
{
    
    SIM800 module = SIM800(MODULE_UART);
    int initStatus = module.init();
    printf("Init status: %d\n", initStatus);
    if (initStatus)
    {
   	 if (module.checkAT())
   	 {
   		 module.setupInternet(MODULE_APN);
   		 char response[2000];
   		module.get("https://api.telegram.org/botTOKEN/sendMessage?chat_id=CHAT_ID&text=Hello", response);
   		 printf("Response: %s", response);

   	 }
   	 
    
    } else return 1;

    module.finishInternet();
    return 0;
}

О применимости

В данной статье не освещается реализация полноценного проекта на основе Luckfox Pico Mini. Только детекция объектов через Yolov8 и немного примеров работы с GPIO пинами, протоколами связи UART и SPI.

В предыдущей статье я замерял производительность Yolov8 на различных одноплатниках, но все они были бОльших размеров и далеко не все из них могут приблизиться к скорости инференса Luckfox Pico Mini. Поэтому 15 FPS - неплохой результат для такой платы. Это нельзя назвать realtime, но порог скорости для попадания в критерий realtime для каждого проекта определяется индивидуально. Очевидно, что Яндексу для своих беспилотников недостаточно 15 FPS. Для каких - то задач такого качества распознавания и скорости хватит. По-большей части - это бытовые или около-бытовые проекты. Хотя, никто не мешает поставить Luckfox Pico на какой - нибудь Tiny Whoop и что - нибудь детектировать ~~(возможно вы подумали про военные цели, но нет, я этого не имел ввиду)~~.

В любом случае, несмотря на то, что использование NPU в ноутбуках с мощными многоядерными процессорами звучит сомнительно, применение NPU в робототехнике выглядит перспективно. В RV1103 всего 0.5 TOPS мощности, а есть Hailo 8 с 26 TOPS мощности. Но Hailo и стоит горадо дороже, и без дополнительной обвязки в виде одноплатника c PCI M2 от него нет никакого толка. Так же Rockchip планирует выпустить процессор RK3688 с 16 TOPS INT8 NPU. В общем, по моему мнению NPU - перспективная технология для запуска нейронных сетей на мобильных роботах, когда нет возможности разместить/запитать/охладить/купить мощную RTX4090.

Я считаю, что Luckfox Pico однозначно заслуживает внимания. Возможно в ближайшее время на базе неё появятся интересные проекты.

Все полезные ссылки по Luckfox я собрал здесь, постараюсь обновлять в процессе появления новых материалов, потому что пока статей/репозиториев мало (а на русском практически нет).

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22 окт. 2024 г.

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CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text: +1 (336) 390-6684 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
24.06.26 14:16 Universina da Mota

Becoming a victim of an investment scam is never anyone's intention it often happens because fraudsters exploit trust and a lack of awareness. I would like to express my sincere gratitude to the dedicated team at ResQpro for their professionalism and commitment to helping victims of online investment fraud. Their efforts in assisting individuals with the recovery of stolen assets and holding scammers accountable are truly commendable. If you need assistance or would like to learn more, you can contact them through: Email: [email protected] Alternative Email: [email protected] Telegram: @ResQprofirm WhatsApp: +1 (985) 296-9146
24.06.26 14:21 Elizabeth Thompson

If you believe you have been the victim of an investment scam, it is important to act promptly and gather all relevant information. Keep records of transaction receipts, wallet addresses, communication logs, account details, and any other evidence related to the incident. Providing accurate documentation can help investigators, financial institutions, legal professionals, or recovery specialists review your case and determine what options may be available. Be cautious of anyone who guarantees the recovery of lost funds or requests large upfront payments. For additional information, you may contact: Email: [email protected] Telegram: @ResQprofirm WhatsApp: +1 (985) 296-9146
24.06.26 15:33 Júlia Castro

If you have fallen victim to an investment scam, it is important to act quickly and gather all available evidence related to the incident. This may include transaction records, wallet addresses, screenshots of conversations, emails, account details, and any information connected to the individuals or entities involved. Having complete documentation can help professionals assess your situation and explore possible recovery options. Always exercise caution when seeking assistance and carefully verify the credentials of any service provider before proceeding. For further information, you may contact: Email: [email protected] Telegram: @ResQprofirm WhatsApp: +1 (985) 296-9146
24.06.26 22:01 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text: +1 (336) 390-6684 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
24.06.26 22:01 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text: +1 (336) 390-6684 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
25.06.26 21:13 Emilie Safi

A fraudulent investment scheme operated by BTCMining.limited functions as a fake return scam. In this setup, scammers lure victims with false promises of high returns. Through manipulative tactics, they gain individuals' trust and convince them to invest, ultimately leading to financial loss. If you have ever faced a cyber threat or fallen victim to an online crypto scam and need to reach the authorities, I recommend contacting [email protected], [email protected], WhatsApp +19852969146, telegram @resqprofirm. They are a legitimate team that helps victims of online crypto scams using advanced tools.
25.06.26 21:25 Emilie Safi

So I ended up losing $38,000 to this platform. At first, they kept asking me to put in more money so I could get into my portfolio. I did that, but then they wouldn’t let me withdraw anything—just kept asking for more deposits. It got way too suspicious, so I stopped. I found this company called ResQProfirm on Google and told them what happened. They got in touch, asked me to walk them through everything, and I gave them all the proof I had. They did an amazing job tracking down my money and getting it back. Big thanks to them at [email protected] and on WhatsApp at +19852969146. Please be careful out there and always research before investing.
26.06.26 01:04 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text: +1 (336) 390-6684 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
26.06.26 01:04 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text: +1 (336) 390-6684 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
26.06.26 02:48 Miriam Rocha

I trusted this platform with $120,000 of my hard-earned money. Then they started asking for more deposits just so I could access my own portfolio. I paid, but every withdrawal request was denied. They kept pushing for more money. I finally stopped it just felt wrong. Desperate, I found ResQProfirm on Google. They didn't just hear me out; they truly listened. I shared all my proof, and they launched an investigation. Thanks to their hard work, they tracked and returned my funds. From the bottom of my heart, thank you to [email protected] and their WhatsApp +19852969146. Please stay safe and always verify a platform before investing
26.06.26 02:52 Miško Bakić

I got my $232,000 refund thanks to [email protected] and WhatsApp +19852969146. Highly recommended for anyone in a similar situation.
26.06.26 02:56 Asunción Herrera

A recovery of $48,330 was facilitated by [email protected]. Individuals who have experienced financial fraud may consider contacting this service.
26.06.26 15:05 Riley Stephens

If withdrawals keep getting denied, stay calm. I went through the same, and this firm helped me recover everything. Their assistance was outstanding. Contact: [ResQProFirm @Gmail|•|com], Telegram: ResQprofirm, WhatsApp: <+198> <5296> <9146>.
26.06.26 15:09 Antonio Riley

Withdrawal troubles shouldn’t stress you out. I faced a similar problem, and this firm stepped in and recovered my funds. Their support truly mattered. Contact them: [[email protected], ResQprofirm @aol.com], Telegram: ResQprofirm, WhatsApp: +19852969146.
28.06.26 00:37 kimberlyhebertt673

I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text Number: +1 (336) 390-6684
28.06.26 00:37 kimberlyhebertt673

I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text Number: +1 (336) 390-6684
29.06.26 11:57 Lisadonato0726

For 43 years, I struggled with bad credit due to my own poor decisions, and my credit score was around 490. When my girlfriend and I decided to buy a house, a mortgage broker informed us that it would be impossible to secure a mortgage with my credit score. As a result, she referred me to a company called HACK MAVENS CREDIT SPECIALIST, assuring me of their professionalism and ability to assist with credit improvement. Upon contacting them, I was impressed by their professionalism and they assured me that they could help. In less than 6 days, my credit score skyrocketed to 785, and they also successfully resolved issues in my credit report, including the bankruptcy. I am incredibly satisfied with their service and would highly recommend HACK MAVENS CREDIT SPECIALIST for reliable credit repairs. You can reach them at H A C K M A V E N S 5 [AT] G M A I L [DOT] COM or at [+] [1] [2 0 9] [4 1 7] – [1 9 5 7]. Thanks to their help, my girlfriend and I are now proud homeowners.
29.06.26 22:37 riley777

Back in 2025, I watched my life savings vanish. A thief took every cent. I felt desperate and went looking for a way to get it back. I found a guy here who said he was an expert haha. He talked about special software that could find my missing cash. I trusted him. That was a big mistake. He was just another scammer. I paid him a software fee and then he just stopped answering my texts and ran off with my money too. I felt so ashamed that I kept quiet about it for months. It is hard to admit you got fooled twice. Later on, I found a real pro. she did not use a fancy sales pitch. she just looked at the trans screenshots and followed the path the money took. she worked fast and got my funds back into my account. Having that money back changed everything. I can sleep again. her info; [email protected]. Call/chatroom on Whtasapp/ +44 7476618364.
30.06.26 15:08 wendytaylor015

My name is Wendy Taylor, I'm from Los Angeles, i want to announce to you Viewer how Capital Crypto Recover help me to restore my Lost Bitcoin, I invested with a Crypto broker without proper research to know what I was hoarding my hard-earned money into scammers, i lost access to my crypto wallet or had your funds stolen? Don’t worry Capital Crypto Recover is here to help you recover your cryptocurrency with cutting-edge technical expertise, With years of experience in the crypto world, Capital Crypto Recover employs the best latest tools and ethical hacking techniques to help you recover lost assets, unlock hacked accounts, Whether it’s a forgotten password, Capital Crypto Recover has the expertise to help you get your crypto back. a security company service that has a 100% success rate in the recovery of crypto assets, i lost wallet and hacked accounts. I provided them the information they requested and they began their investigation. To my surprise, Capital Crypto Recover was able to trace and recover my crypto assets successfully within 24hours. Thank you for your service in helping me recover my $647,734 worth of crypto funds and I highly recommend their recovery services, they are reliable and a trusted company to any individuals looking to recover lost money. Contact email [email protected] OR Telegram @Capitalcryptorecover Call/Text Number +1 (336)390-6684 his contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
30.06.26 15:08 wendytaylor015

My name is Wendy Taylor, I'm from Los Angeles, i want to announce to you Viewer how Capital Crypto Recover help me to restore my Lost Bitcoin, I invested with a Crypto broker without proper research to know what I was hoarding my hard-earned money into scammers, i lost access to my crypto wallet or had your funds stolen? Don’t worry Capital Crypto Recover is here to help you recover your cryptocurrency with cutting-edge technical expertise, With years of experience in the crypto world, Capital Crypto Recover employs the best latest tools and ethical hacking techniques to help you recover lost assets, unlock hacked accounts, Whether it’s a forgotten password, Capital Crypto Recover has the expertise to help you get your crypto back. a security company service that has a 100% success rate in the recovery of crypto assets, i lost wallet and hacked accounts. I provided them the information they requested and they began their investigation. To my surprise, Capital Crypto Recover was able to trace and recover my crypto assets successfully within 24hours. Thank you for your service in helping me recover my $647,734 worth of crypto funds and I highly recommend their recovery services, they are reliable and a trusted company to any individuals looking to recover lost money. Contact email [email protected] OR Telegram @Capitalcryptorecover Call/Text Number +1 (336)390-6684 his contact: [email protected] His website: https://recovercapital.wixsite.com/capital-crypto-rec-1
02.07.26 01:22 Lieneke Bonnema

I highly recommend ResQprofirm for their professional asset recovery services of my $120,000 scammed funds. Their expertise, professionalism, and commitment to achieving results make them a reliable choice for anyone seeking dependable recovery assistance. [email protected], WhatsApp +19852969146, telegram @resqprofirm
02.07.26 01:26 Clara Morin

I want to extend my deepest appreciation for showing that circumstances do not define one’s potential for greatness. Your support has been a major source of inspiration during my trading journey, and I am sincerely grateful for your insight and mentorship. Thank you so much. [email protected], WhatsApp +19852969146, telegram ResQprofirm
02.07.26 01:31 Robin Hale

I sincerely want to thank you for demonstrating that anyone can rise above their circumstances and achieve success. Your constant support has been incredibly inspiring during my trading journey, and your wisdom and advice mean so much to me. I appreciate you deeply. [email protected], WhatsApp +19852969146, telegram Resqprofirm
04.07.26 15:32 Fraddy Pual

There are few companies I trust as much as FUNDSRETRIEVER. When I lost $653,000 in Ethereum to a ruthless scam, I thought my life would never be the same. The betrayal cut deep, but I refused to give up. I searched tirelessly for a legitimate way to recover what was stolen, and finally found FUNDSRETRIEVER—the most competent and compassionate recovery team I could have imagined. They handled my case with precision and care, and in the end, my entire ETH wallet was restored. More than the money, they gave me back my hope and happiness. I'm sharing my story because I want others to know that recovery is possible. If a scam has taken from you, don't hesitate—contact FUNDSRETRIEVER today. Email: FUNDSRETRIEVER1@ Gmail.com | WhatsApp: +1 603-512-1448 | Telegram: @FUNDSRETRIEVER
05.07.26 14:44 lydiassmith567

HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/Text: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
05.07.26 14:44 lydiassmith567

HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/Text: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
06.07.26 16:20 Olga Ognjanović

Having trouble withdrawing funds from an investment platform? ResQprofirm provides fund recovery assistance for individuals seeking help with investment-related disputes. I reached out to them after experiencing problems with an investment platform, and I appreciated their professionalism and support throughout the process. If you're facing a similar situation, act promptly, keep records of your transactions and communications, and seek assistance from a qualified recovery service or the appropriate authorities. Contact: Email: [email protected] Telegram: @ResQprofirm WhatsApp: +1 985 296 9146
06.07.26 16:31 Joseph Weigl

Invest wisely and stay cautious. Don't be influenced by promises of unusually high returns or convincing sales pitches from brokers. I learned this the hard way after falling victim to an investment scam that promised huge profits. Fortunately, I acted quickly and reported the incident to a recovery firm for assistance. Contact: Email: [email protected] Telegram: @Resqprofirm WhatsApp: +1 985 296 9146
06.07.26 16:33 Jaran Løvlien

A heartfelt thank you to RESQPRO FIRM for their commitment and professionalism throughout the investigation of my case. Their team worked diligently and helped recover assets valued at $88,000, which were returned to my wallet. I truly appreciate their support, clear communication, and dedication, and I'm grateful for the assistance I received. Contact: Email: [email protected] Telegram: @Resqprofirm WhatsApp: +1 985 296 9146
07.07.26 18:00 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text: +1 (336) 390-6684 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
07.07.26 18:01 robertalfred175

CRYPTO SCAM RECOVERY SUCCESSFUL – A TESTIMONIAL OF LOST PASSWORD TO YOUR DIGITAL WALLET BACK. My name is Robert Alfred, Am from Australia. I’m sharing my experience in the hope that it helps others who have been victims of crypto scams. A few months ago, I fell victim to a fraudulent crypto investment scheme linked to a broker company. I had invested heavily during a time when Bitcoin prices were rising, thinking it was a good opportunity. Unfortunately, I was scammed out of $120,000 AUD and the broker denied me access to my digital wallet and assets. It was a devastating experience that caused many sleepless nights. Crypto scams are increasingly common and often involve fake trading platforms, phishing attacks, and misleading investment opportunities. In my desperation, a friend from the crypto community recommended Capital Crypto Recovery Service, known for helping victims recover lost or stolen funds. After doing some research and reading multiple positive reviews, I reached out to Capital Crypto Recovery. I provided all the necessary information—wallet addresses, transaction history, and communication logs. Their expert team responded immediately and began investigating. Using advanced blockchain tracking techniques, they were able to trace the stolen Dogecoin, identify the scammer’s wallet, and coordinate with relevant authorities to freeze the funds before they could be moved. Incredibly, within 24 hours, Capital Crypto Recovery successfully recovered the majority of my stolen crypto assets. I was beyond relieved and truly grateful. Their professionalism, transparency, and constant communication throughout the process gave me hope during a very difficult time. If you’ve been a victim of a crypto scam, I highly recommend them with full confidence contacting: Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] Call/Text: +1 (336) 390-6684 Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
09.07.26 19:06 Toivo Walli

I lost 8.56btc to a fake Bitcoin mining site, I tried withdrawing but couldn't approved my process, I reported to !R£SQPROFIRM! via °R£SQproFirm°àt°gmail•com° °tEL£°gram=R£SQprofirm °whaT°Zap+198°52°96°91°46
09.07.26 19:10 Misty Alexander

Ongoing messages demanding more money before approving withdrawals are a major red flag. Stop engaging and report the incident to a trusted recovery team. For professional support, you can contact R£sQprofirm using °ResQproFirm°àt°g,*ma'il(•)¢m°, TEL£gram ResQprofirm, or |whaTZap| +1-985-296-9146.
09.07.26 19:13 Clara Soto

Anyone receiving continued requests for additional deposits from a scam platform should immediately cut off communication and submit the case to a reputable recovery service for investigation. R£sQprofirm is a dependable firm you can reach at °ResQproFirm°àt°g,*ma'il(•)¢om°, TEL£gram ResQprofirm, or |whaTZap| +1-985-296-9146.
12.07.26 03:30 Kora Baltacha

Time is critical. Act now by reaching out to a reputable, seasoned recovery specialist who will guide you every step of the way. You'll need to submit transaction proof, scammer details, and any other useful information. Armed with this, the experts can trace and attempt to pull your money back from the scammers' hidden accounts or wallets. Best of all, R£sQprofirm provides recovery help without charging any upfront fees. Contact them immediately via Telegram @ResQprofirm, WhatsApp +19852969146, or email [email protected].
12.07.26 03:33 Pahal Mathew

It's important to move proactively by engaging an experienced recovery specialist. They will assist you throughout the process. To help them, provide: · Transaction evidence · Scammer information · Any additional relevant details The experts will then track and try to retrieve your funds from the scammers' hidden accounts or wallets. R£sQprofirm offers recovery assistance with no upfront fees. Contact: Telegram: @ResQprofirm WhatsApp: +19852969146 Email: [email protected]
13.07.26 23:49 [email protected]

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30.07.26 00:04 Ahmed

A really cool analysis, thank you. I was especially struck by how strictly the order is defined: data processing and formatting come first, with color only at the very end. This really saves you from the typical mistake of "first a pretty palette, then we figure out what the chart is for." And the palette validator with OKLCH + colorblindness check is absolutely fantastic; you almost never see that in regular tools. By the way, while reading about rank-trajectory and the logarithmic scale, I immediately remembered how convenient it is to analyze dynamics on charts in ExpertOption—I've been trading there for quite some time now. When the data is well visualized, decisions are noticeably easier and more relaxed. I also liked the point about "no more than eight colors" and the dual-axis ban. Strict restrictions sometimes actually produce better results than complete freedom. I'll try this approach myself.
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03.08.26 20:05 Philip

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03.08.26 20:06 Philip

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04.08.26 11:05 Kisnoles

Excellent analysis, thank you. I was particularly struck by how rigidly the skill sets the order: data processing and form come first, with color coming last. This really cures the habit of "first a pretty palette, then we'll figure it out." A palette validator using OKLCH + color blindness + WCAG is something most chart generators lack. And regarding the boundaries of competence, it's very clear. Where there's a self-checking loop (color), you delegate freely. Where there's a heuristic (form, data interpretation), you remain the final filter. This is a universal principle, not just for /dataviz. By the way, when you look at trading dashboards (including those of decent platforms like ExpertOption), it's immediately clear who thought about readability and who just threw in rainbow lines. Tools like this skill could greatly improve the quality of analytics. Thanks again for the detailed analysis – saved.
04.08.26 12:37 kimberlyhebertt6877

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12.08.26 16:37 rssllhrnsb

I learned an important lesson after investing in what appeared to be a genuine opportunity. Unfortunately, I was unable to access my funds, which reinforced the importance of carrying out thorough due diligence, checking whether an investment is appropriately regulated, and seeking qualified professional advice rather than relying solely on online reviews or testimonials. During the process of addressing my case, I worked with Mrs. Tatiana Sorina , who communicated clearly, provided regular updates, and handled the matter in a professional manner. According to my experience, I have recovered $50,000 so far, while efforts to resolve the remaining balance are still in progress. If you wish to contact her, the details I used are: Mrs. Tatiana Sorina TEXT : (tatianasorina06 at G_Ma IL dot ..c 0 m)…. Before committing money to any investment, take time to verify the legitimacy of the platform, confirm any relevant regulatory authorisations, and avoid investing more than you can comfortably afford to lose.
16.08.26 01:44 Matt Kegan

CapitalNode Analytics. They help to investigate and recover stolen digital assets from fake trading platforms. Great firm i must say.
18.08.26 04:59 marcushenderson624

Bitcoin Recovery Testimonial After falling victim to a cryptocurrency scam group, I lost $354,000 worth of USDT. I thought all hope was lost from the experience of losing my hard-earned money to scammers. I was devastated and believed there was no way to recover my funds. Fortunately, I started searching for help to recover my stolen funds and I came across a lot of testimonials online about Capital Crypto Recovery, an agent who helps in recovery of lost bitcoin funds, I contacted Capital Crypto Recover Service, and with their expertise, they successfully traced and recovered my stolen assets. Their team was professional, kept me updated throughout the process, and demonstrated a deep understanding of blockchain transactions and recovery protocols. They are trusted and very reliable with a 100% successful rate record Recovery bitcoin, I’m grateful for their help and highly recommend their services to anyone seeking assistance with lost crypto. Contact: [email protected] Phone WhatsApp/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
18.08.26 04:59 marcushenderson624

Bitcoin Recovery Testimonial After falling victim to a cryptocurrency scam group, I lost $354,000 worth of USDT. I thought all hope was lost from the experience of losing my hard-earned money to scammers. I was devastated and believed there was no way to recover my funds. Fortunately, I started searching for help to recover my stolen funds and I came across a lot of testimonials online about Capital Crypto Recovery, an agent who helps in recovery of lost bitcoin funds, I contacted Capital Crypto Recover Service, and with their expertise, they successfully traced and recovered my stolen assets. Their team was professional, kept me updated throughout the process, and demonstrated a deep understanding of blockchain transactions and recovery protocols. They are trusted and very reliable with a 100% successful rate record Recovery bitcoin, I’m grateful for their help and highly recommend their services to anyone seeking assistance with lost crypto. Contact: [email protected] Phone WhatsApp/Text Number: +1 (336) 390-6684 Email: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
19.08.26 14:50 BAYER7043

My account was locked, and I couldn’t access my own information until [email protected] +447476618364 whats?up? helped me recover it. This lady hacker was kind and professional, but this experience showed me how risky account lockouts can be. If you’re facing the same problem, do not panic consult her A. S. A. P. Be careful with recovery agents outchea, and research their name, business, and reviews before sharing any details. Never send passwords, security codes, banking information, or copies of your ID unless you’ve confirmed who you’re dealing with. Be wary of promises that sound too good to be true, especially claims that require little information or guarantee instant access with outrageous fees.
20.08.26 11:32 michaeldavenport218

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR WhatsApp Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
20.08.26 11:32 michaeldavenport218

I was recently scammed out of $53,000 by a fraudulent Bitcoin investment scheme, which added significant stress to my already difficult health issues, as I was also facing cancer surgery expenses. Desperate to recover my funds, I spent hours researching and consulting other victims, which led me to discover the excellent reputation of Capital Crypto Recover, I came across a Google post It was only after spending many hours researching and asking other victims for advice that I discovered Capital Crypto Recovery’s stellar reputation. I decided to contact them because of their successful recovery record and encouraging client testimonials. I had no idea that this would be the pivotal moment in my fight against cryptocurrency theft. Thanks to their expert team, I was able to recover my lost cryptocurrency back. The process was intricate, but Capital Crypto Recovery's commitment to utilizing the latest technology ensured a successful outcome. I highly recommend their services to anyone who has fallen victim to cryptocurrency fraud. For assistance contact [email protected] and on Telegram OR WhatsApp Number +1 (336)390-6684 via email: [email protected] you can visit his website: https://recovercapital.wixsite.com/capital-crypto-rec-1
23.08.26 20:02 leslieyee

Excellent analysis by /dataviz! I was particularly struck by how strictly the order is defined: "data meaning first, color last" and how the validator actually adjusts the palette according to OKLCH, color blindness, and WCAG standards. These rules greatly improve the quality of charts. By the way, a similar approach to clean and legible charts is highly valued in trading—for example, on the ExpertOption platform, the interface and price visualization are designed to ensure information is read instantly and without unnecessary noise.
25.08.26 13:44 lydiassmith567

HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
25.08.26 13:44 lydiassmith567

HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
30.08.26 15:37 [email protected]

Discovering I had been defrauded, I searched online for services claiming to recover stolen ETH. I contacted several companies, but none succeeded. Although some claimed they could trace assets or recover funds, I could not verify their success or recover my money. I later found SYLVESTER BRYANT Recovery through Google. After contacting him, he recovered 450,000,00. He can be reached at [email protected] or WhatsApp at +1 512 577 7957.
30.08.26 15:37 [email protected]

Discovering I had been defrauded, I searched online for services claiming to recover stolen ETH. I contacted several companies, but none succeeded. Although some claimed they could trace assets or recover funds, I could not verify their success or recover my money. I later found SYLVESTER BRYANT Recovery through Google. After contacting him, he recovered 450,000,00. He can be reached at [email protected] or WhatsApp at +1 512 577 7957.
01.09.26 11:16 lisawerth897

My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
01.09.26 11:16 lisawerth897

My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
01.09.26 17:34 Garry42

Really crazy world. These fraudsters go at any length to steal your hard earned funds. I have been a victim of a bitcoin scam about 7 months back. A Con artist gained access to my cashapp account through a phishing scam. They stole $409,000. I was really devastated. I did everything to get back my funds by contacting the FBI but they claimed there was nothing they could do. A friend told me about a recovery expert. He helps fight against various phishing and investment scams and they were able to help trace and recover my funds even though it took over 2 days. you can reach out to him through recoverydarek@gmail. com . I can guarantee his services are still active.
01.09.26 17:34 Garry42

Really crazy world. These fraudsters go at any length to steal your hard earned funds. I have been a victim of a bitcoin scam about 7 months back. A Con artist gained access to my cashapp account through a phishing scam. They stole $409,000. I was really devastated. I did everything to get back my funds by contacting the FBI but they claimed there was nothing they could do. A friend told me about a recovery expert. He helps fight against various phishing and investment scams and they were able to help trace and recover my funds even though it took over 2 days. you can reach out to him through recoverydarek@gmail. com . I can guarantee his services are still active.
02.09.26 03:43 kimberlyhebertt6877

I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
02.09.26 03:43 kimberlyhebertt6877

I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
04.09.26 21:51 Kovengray

Recovering your lost investment funds as the case might be, is not what you can do alone, you’d require the service of a trained recovery specialist. A recovery specialist is a person or a group of people who are well equipped to work around the brokerage network. They have vast knowledge about the whole network and have the right software and private keys to follow any transaction. I was ripped off trading online to an investment broker, good thing I got every penny back through the help of Gavin ray he’s a genius Contact : Gavinray78 at gmail com or WhatsApp +1 352 322 2096 It is also important to be patient and really calm during the process.
05.09.26 21:38 [email protected]

I invested 45,000 Euro, and later aggreviated to 198,000 Euro. I requested to place ‎Withdrawal of my funds to be paid to my Bank account. But nothing happened I was subjected to pay more fee until I can get my funds on my account, i got in touch with Theodore ryan here on this platform who had helped a lot of people, I followed all instructions and he legally got back my withheld funds, I got threatened by the company that if I don’t pay they will get my account frozen, all thanks to Theodore ryan and I highly recommend him to anyone dealing with an unregulated broker company… contact him on his Gmail - theodoreryan318@ gmail . com
09.09.26 21:31 lisawerth897

My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
09.09.26 21:31 lisawerth897

My Experience With Cryptocurrency — CAPITAL CRYPTO RECOVER I lost over $82,000 in Bitcoin after falling victim to a fraudulent online investment scheme. After realizing I had been scammed, I spent considerable time researching possible ways to recover my funds. During my research, I came across CAPITAL CRYPTO RECOVER and decided to contact them after reading their reported success record and encouraging client positive reviews and testimonials. Their team guided me through the recovery process, and I was grateful to successfully recover my lost cryptocurrency. The experience was challenging, but I appreciated the assistance and support I received throughout the process. I’m sharing my experience in the hope that it may encourage other victims to carefully research their options and verify any recovery service before proceeding. I will forever be thankful to you CAPITAL CRYPTO RECOVER 📧 [email protected] 🌐 Website: recovercapital.wixsite.com/capital-crypto-rec-1 📧 [email protected] 📞 Call/WhatsApp: +1 (336) 390-6684
09.09.26 23:22 Fraddy Pual

Hearing that these individuals are focusing on other people makes me very sad. I had a similar situation with them and lost a lot of money, but after learning about (Cruxcipherteam @ proton DoT me), whataqq:+168160-15021, telegram: @Cruxcipherteam I was able to get my money back. It's critical that we all be watchful and keep reporting these occurrences.
11.09.26 03:23 kimberlyhebertt6877

I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
11.09.26 03:23 kimberlyhebertt6877

I invested in bitcoin trading After losing $78.4 USDT) linked to a romance fraud scam worth of cryptocurrency through an online investment platform and later discovered it was a scam. After extensive research for recovery options, I contacted CAPITAL CRYPTO RECOVER based on positive client reviews and recommendations. Their professional security team guided me through the recovery process using advanced technology, and I was able to recover my lost cryptocurrency successfully. I am truly grateful for their support and assistance during such a difficult experience. I will advise you to contact CAPITAL CRYPTO RECOVER helped me recover my funds. For anyone facing similar issues, Website: https://recovercapital.wixsite.com/capital-crypto-rec-1 Email: [email protected] Telegram: @Capitalcryptorecover Contact: [email protected] WhatsApp/Text Number: +1 (336) 390-6684
15.09.26 03:35 elioduncan

I fell victim to a freelance web development contract scam that ultimately cost me CAD 4,000. It all started when I came across a job posting on Indeed Canada, a popular online job portal. The position seemed perfect: a freelance web developer role for an established company looking for someone to design and build a fully functional e-commerce website. The job promised a high payment of CAD 20,000 upon successful completion, which sounded like a great opportunity for me to gain experience and earn decent pay.The employer, who introduced himself as a project manager from a "well-known" tech company, was very persuasive and professional in our initial communication. He explained that the project involved developing a user-friendly, responsive online store for their client and that they had a strict timeline to meet. He assured me that the payment would be made promptly after completing the tasks. However, before starting the work, he told me that I would need to pay an upfront fee of CAD 4,000 to cover certain software tools and licensing fees required for the project. This was supposedly a part of their company policy for freelance contractors, ensuring access to their premium resources. The idea of working on a professional project, coupled with the promise of a substantial payout, convinced me to pay the upfront fee.As soon as I made the payment, the project manager became increasingly difficult to reach. He initially responded to my emails and provided some vague instructions on what the project would entail, but as time went on, communication slowed to a complete halt. I never received the required tools or any proper project details. My emails went unanswered, and any attempts to contact the company were met with silence. After waiting for weeks, I realized that I had been scammed.Desperate to recover my money, I turned to TechY Force Cyber Retrieval, a service that specializes in helping victims of online scams. They helped me track the payment and took legal steps to pursue the fraudsters. Through their guidance, I was able to recover the full CAD 4,000. TechY Force Cyber Retrieval worked with my bank to reverse the transaction and liaised with the authorities to trace the scammer's details.This was a hard lesson, and I now know to be highly cautious about online job offers that require upfront payments. It is crucial to research companies thoroughly and avoid any job that seems too good to be true, especially when it involves paying money upfront. WhatsApp https://wa.link/2x6ktp Mail. [email protected]
15.09.26 15:45 lydiassmith567

HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1
15.09.26 15:45 lydiassmith567

HIRE A HACKER YOUR STOLEN CRYPTO RECOVERY / BTC / USDT / ETH WITH THE HELP OF CAPITAL CRYPTO RECOVER. I want to share my experience publicly regarding cryptocurrency wallet recovery, I highly recommend you to contact CAPITAL CRYPTO RECOVER, a professional private investigator in the Bitcoin world. They have a certified expert security team specializing in Bitcoin Recovery Services and have helped many people worldwide recover their lost funds. My wife and I were defrauded by an online manipulator posing as an experienced crypto investment professional. We lost $9.2 Million Stolen BTC in cryptocurrency and were left feeling homeless. After spending hours searching for a reliable crypto recovery service, I discovered CAPITAL CRYPTO RECOVER online. By patiently explaining my situation to their team, I was able to recover all my funds. Remarkably, my money was returned to my wallet in less than 24 hours. I am extremely grateful to CAPITAL CRYPTO RECOVER for their excellent assistance—they truly were a godsend in my difficult situation. If you have fallen victim to a cryptocurrency scam, you can reach CAPITAL CRYPTO RECOVER through the following channels Email: [email protected] OR Call/WhatsApp: +1 (336) 390-6684 Contact: [email protected] Website: https://recovercapital.wixsite.com/capital-crypto-rec-1