int buttonUpState = digitalRead(pullUp); int buttonDownState = digitalRead(pullDown); // make a message that will be sent to the serial line String message = “Pull Up: ” + String(buttonUpState); message = message + “。 Pull Down: ” + String(buttonDownState); // send the message...
类型touch gpio_button.py。 类型idle3 gpio_button.py。这将在 Python 3 的空闲 IDE 中打开空文件。 输入以下代码: # GPIO example using an NC-SR04 ultrasonic rangefinder # import the GPIO and time libraries import RPi.GPIO as GPIO # Set the GPIO mode to BCM mode and disable warnings GPIO.se...
//print out the value of the pushbutton Serial.println(sensorVal); // Keep in mind the pullup means the pushbutton's // logic is inverted. It goes HIGH when it's open, // and LOW when it's pressed. Turn on pin 13 when the // button's pressed, and off when it's not: if ...
pinMode(3, INPUT_PULLUP); //Button 2 with internal pull up to fast forward music.setVolume(5); // 0 to 7. Set volume level music.quality(1); // Set 1 for 2x oversampling Set 0 for normal //music.volume(0); // 1(up) or 0(down) to control volume //music.play("filename"...
// 10K pull-down from D6->GND, then D6->SW1->5V pinMode( buttonPin, INPUT ) ; } } void loop( void ) { // Begin Garage Opener if ( IS_GARAGE_OPENER ) { int read = digitalRead( buttonPin ) ; if( read != previousButtonState ) { ...
//configure pin2 as an input and enable the internal pull-up resistor pinMode(2, INPUT_PULLUP); pinMode(13, OUTPUT); } void loop() { //read the pushbutton value into a variable int sensorVal = digitalRead(2); //print out the value of the pushbutton ...
pinMode(buttonPin1, INPUT_PULLUP); //设置按键管脚上拉输入模式 pinMode(buttonPin2, INPUT_PULLUP); //设置按键管脚上拉输入模式 pinMode(buttonPin3, INPUT_PULLUP); //设置按键管脚上拉输入模式 pinMode(buttonPin4, INPUT_PULLUP); //设置按键管脚上拉输入模式 ...
void handlebutton() { maineventFlags | = flag_interrupt; } 字节LEDSTATE = low; // low = 0 void loop(){ // ***这是基于中断的基于D3(中断1)的按钮的中断be拒绝, if(maineventflags&flag_interrupt) { lowpower.power.power.power.powerdown(sleep_120ms,adc_off,adc_off,adc_off,adc_on,bo...
常量int Down_buttonPin = 8; 浮动按钮PushCounter = 0; 浮动up_buttonState = 0; 浮动up_lastButtonState = 0; 浮动down_buttonState = 0; 浮动down_lastButtonState = 0; 在设置部分,我们首先启动了串口监视器,这只是为了调试。然后我们定义了引脚模式,所有按钮都定义为输入。在 Arduino PULL UP 功能的帮...
(buttonConnect,INPUT_PULLUP);pinMode(buttonOn,INPUT_PULLUP);pinMode(buttonCapture,INPUT_PULLUP);pinMode(connectLED,OUTPUT);pinMode(onLED,OUTPUT);pinMode(captureLED,OUTPUT);digitalWrite(connectLED,LOW);digitalWrite(onLED,HIGH);digitalWrite(captureLED,LOW);}voidloop(){switch(isButtonPressed()){...