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...
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:int...
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...
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=...
So, when the button is not pressed you will see “1” printed, and when the button is pressed, you will see “0”. Improvement: Print a more explicit message This first code is great as a minimal example to see the data coming from the push button. But in a real application, you ...
(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 ...
/* JoystickArduinoBasicExample.pde A basic sketch to demonstrate reading values from the joystick shield How to use: * Connect joystick shield to your Arduino * Upload this sketch to your Arduino * Open the Arduino IDE Serial Monitor (set to 9600 baud) * Waggle joystick, push buttons Requires...