/* * 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); }