ESP8266的LED灯

步骤

让esp8266的LED灯一闪一闪的…
在Arduino中配置好，根据自己的配置…

工具-开发板-··NodeMCU 1.0

工具-端口-COM4(我的是COM4…)

下面这段代码就是文件-示例-Basics-Blink

一定要注意加上一行代码#define LED_BUILTIN 2

/*
  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.

  http://www.arduino.cc/en/Tutorial/Blink
*/
#define LED_BUILTIN 2
// 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
}

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参考

• 完美图解物联网IoT实操. ESP8266 Arduino，Cordova物联网移动App， JavaScript微控制器编程 / 赵英杰著.—北京：电子工业出版社，2018.9