接口插入开发板的UART
代码语言：javascript复制void setup() {
// 初始化数字引脚 LED_BUILTIN 为输出模式
pinMode(LED_BUILTIN, OUTPUT);
// 初始化串口通信，波特率为9600
Serial.begin(9600);
}
void loop() {
// 检查串口是否有数据可读
if (Serial.available() > 0) {
// 读取串口输入的数据
String input = Serial.readString();
// 将输入数据转换为大写（忽略大小写）
input.trim();
input.toUpperCase();
// 根据输入指令控制LED
if (input == "ON") {
digitalWrite(LED_BUILTIN, HIGH); // 开启LED
Serial.println("LED is ON");
} else if (input == "OFF") {
digitalWrite(LED_BUILTIN, LOW); // 关闭LED
Serial.println("LED is OFF");
} else {
Serial.println("Invalid command. Please enter 'ON' or 'OFF'.");
}
}
}每隔1s闪烁灯光
代码语言：javascript复制/*
Blink
Turns an LED on for one second, then off for one second, repeatedly.
Most Arduinos have an on-board LED you can control. On the UNO, MEGA and ZERO
it is attached to digital pin 13, on MKR1000 on pin 6. LED_BUILTIN is set to
the correct LED pin independent of which board is used.
If you want to know what pin the on-board LED is connected to on your Arduino
model, check the Technical Specs of your board at:
https://www.arduino.cc/en/Main/Products
modified 8 May 2014
by Scott Fitzgerald
modified 2 Sep 2016
by Arturo Guadalupi
modified 8 Sep 2016
by Colby Newman
This example code is in the public domain.
https://www.arduino.cc/en/Tutorial/BuiltInExamples/Blink
*/
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}开发板选中ESP S3 Dev Module
