Pushbuttons or switches connect two points in a circuit when you press them. This example turns on the built-in LED on pin 13 when you press the button. 按钮开关或者开完会在按下时连接电路中的两个点。这个示例在按下按钮时,点亮连接到 13 针的板载 LED。 (1)硬件需求 - Hardware Arduino Bo...
Arduino Logic Control (1): Push button switch to control LED lights.首先打开Arduino IDE，依次选择文件，示例，Digital,DigitallnputPullup。将此程序上传到Arduino开发板上，可以发现在之前的示例中也一直有一个上拉电阻，但是在本次演示中，上拉电阻是不存在的，因为本次演示是通过输入上拉模式。Start by open...
This example code is in the public domain. http://www.arduino.cc/en/Tutorial/ButtonStateChange */// this constant won't change:constintbuttonPin=2;// the pin that the pushbutton is attached toconstintledPin=13;// the pin that the LED is attached to// Variables will change:intbutton...
pinMode(ledPin,OUTPUT); // initialize the pushbutton pin as an input: pinMode(buttonPin,INPUT); } 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=...
(9600);// make the pushbutton's pin an input:pinMode(pushButton,INPUT);}// the loop routine runs over and over again forever:voidloop(){// 读取pin2脚电平状态intbuttonState=digitalRead(pushButton);// 输出电平的状态值Serial.println(buttonState);delay(1000);// 原例程延时1ms,建议加大延时,...
example that demonstrates how to use an array. 数组:For循环的例子演示了 如何使用数组的变化。 While Loop: how to use a while loop to calibrate a sensor while a button is being read. While循环:如何 使用一个while循环来校准传感器,而正Stepper Library步进图书馆 Motor Knob: control a highly accur...
This example shows how to play three songs from SD card by pressing a push button The circuit: * Push Button on pin 2 and 3 * Audio Out - pin 9 * SD card attached to SPI bus as follows: ** MOSI - pin 11 ** MISO - pin 12 ...
This example shows how to detect when a button or button changes from off to on and on to off. 本示例说明如何检测按钮或按钮从关闭变为打开,然后从打开变为关闭。 The circuit: * pushbutton attached to pin 2 from +5V * 10K resistor attached to pin 2 from ground ...
(see example). The important bits are in line 5, where we define the color property:@property() color = 'red';Also, in line 35 (where we use this property to define the fill color for the circle that makes the cap of the button), using the JavaScript template literal syntax, ...
This example code is in the public domain.http://www.arduino.cc/en/Tutorial/Button*///constants won't change. They're used here to set pin numbers:constintbuttonPin =2;//the number of the pushbutton pinconstintledPin =13;//the number of the LED pin//variables will change:intbutton...