rt-thread/bsp/stm32/stm32f427-robomaster-a/applications/arduino_main.cpp

/*
 * Copyright (c) 2006-2022, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2022-12-21     ChuShicheng  first version
 */

#include <Arduino.h>

void setup(void)
{
    /* put your setup code here, to run once: */
    pinMode(LED_BUILTIN, OUTPUT);
}

void loop(void)
{
    /* put your main code here, to run repeatedly: */
    digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
    delay(100);
}