初始化提交

arduino-cli/libraries/M5Core2-master/examples/Unit/RELAY/RELAY.ino

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+/*
+*******************************************************************************
+* Copyright (c) 2021 by M5Stack
+*                  Equipped with M5Core2 sample source code
+*                          配套  M5Core2 示例源代码
+* Visit the website for more information: https://docs.m5stack.com/en/core/core2
+* 获取更多资料请访问: https://docs.m5stack.com/zh_CN/core/core2
+*
+* describe: Relay.  继电器
+* date: 2021/8/16
+*******************************************************************************
+  Please connect to Port B,Use RELAY to switch on and off the circuit.
+  请连接端口B,使用继电器开关电路。
+*/
+
+#include <M5Core2.h>
+
+void setup() {
+  M5.begin(); //Init M5Core2.  初始化 M5Core2
+  M5.lcd.setTextSize(2);  //Set the text size to 2.  设置文字大小为2
+  M5.Lcd.setCursor(50, 0);
+  M5.Lcd.println(("Relay Example"));
+  dacWrite(25, 0);  //disable the speak noise
+  pinMode(26, OUTPUT);
+}
+
+void loop(void) {
+  M5.Lcd.setCursor(100, 40);
+  M5.Lcd.print("ON");
+  digitalWrite(26, HIGH);
+  delay(1000);
+  M5.Lcd.fillRect(100,40,60,50,BLACK);
+  M5.Lcd.print("OFF");
+  digitalWrite(26, LOW);
+  delay(1000);
+  M5.Lcd.fillRect(100,40,60,50,BLACK);
+}