In this Arduino tutorial I will show you how to turn an LED on and off with a push button. In fact, we’ll do 2 slightly different applications. First, we will power on the LED when the button is pressed, and power off the LED when the button is not pressed. And then we’ll mo...
视频音乐来自:Clipchamp 视频电路图由VirtualBreadBoard制作 参考链接: https://www.circuitbasics.com/how-to-connect-and-program-push-buttons-on-the-arduino/ https://roboticsbackend.com/arduino-turn-led-on-and-off-with-button/ 分享至 投诉或建议 目录 1 0 0...
/* read the state of the pushbutton value:*/ buttonState = digitalRead(buttonPin); /* check if the pushbutton is pressed. If it is, the buttonState is HIGH:*/ if (buttonState == HIGH) { /* turn LED on:*/ digitalWrite(ledPin, HIGH); } else { /* turn LED off:*/ digitalWrite...
// readthe state of the pushbutton value: buttonState = digitalRead(buttonPin); // check if the pushbutton is pressed. If it is, the buttonState is HIGH: if (buttonState == HIGH) { // turn LED on: digitalWrite(ledPin, HIGH); } else { // turn LED off: digitalWrite(ledPin, LOW...
// check if the pushbutton is pressed.// if it is, the buttonState is HIGH:if (buttonState == HIGH) { // turn LED on:digitalWrite(ledPin, HIGH);} else { // turn LED off:digitalWrite(ledPin, LOW);} 说明：L01〜L02：定义按键与LED的脚位，按键接在PIN2码，而LED...
Button 按钮 Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2. 点亮和熄灭连接到数字针脚 13 上的 LED, 当按下连接到针脚 2 上的按钮开关。 The circuit: 电路连接
/*Button Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2. The circuit: * LED attached from pin 13 to ground * pushbutton attached to pin 2 from +5V * 10K resistor attached to pin 2 from ground ...
(PB3,HIGH);}voidloop(){// read the state of the pushbutton value:buttonState=digitalRead(buttonPin);// check if the pushbutton is pressed. If it is, the buttonState is HIGH:if(buttonState==HIGH){// turn LED on:digitalWrite(ledPin,HIGH);}else{// turn LED off:digitalWrite(ledPin,...
// “number of button pushes: ”,此处没有换行。 Serial.print("number of button pushes: "); // 接着上一行尾部,打印记录按键次数变量的数值。 Serial.println(buttonPushCounter); } else { // 向串口调试终端打印字符串“off”, // 表示当前按键状态为松开状态,也即断开状态。 Serial.println("off"...
我们打算是IO15是按键,IO2是板载LED灯。 所以修改。 注意如何设置输入输出模式,OUTPUT和INPUT。 如何读取某个管脚的电平状态。 /* Button Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2. ...