pinMode(buttonPin, INPUT); } (4)循环函数 void loop() { // read the state of the pushbutton value: 读取按钮开关的状态值 buttonState = digitalRead(buttonPin); // check if the pushbutton is pressed. If it is, the buttonState is HIGH: 检查按钮开关是否被按下。如果是的话,buttonState 为...
void lightCtrlIface_setLight(const LightCtrl* handle, const sc_boolean lightOn) { if(lightOn) digitalWrite(LED_PIN, HIGH); else digitalWrite(LED_PIN, LOW); } //The setup function is called once at startup of the sketch void setup() { pinMode(BUTTON_PIN, INPUT); pinMode(LED_PIN, O...
for (int i = 0; i < sizeof(recorded_button) / 2; i++) { 延迟((记录时间[i])* 10);//等待支付下一曲 if (recorded_button[i] == 0) noTone(蜂鸣器);//用户没有触摸任何按钮 别的 音(蜂鸣器,注释[(recorded_button[i] - 1)]);//播放用户触摸的按钮对应的声音 } } } 然后,要播放录...
现在,根据按钮状态,我们使用if语句绘制一个小圆圈或大圆圈。 fill(0) ; // set the fill color to black clear() ; // clean the screen fill(255) ; // set the fill color to white if (b == 1) // check if the button is pressed { // draw a larger circle with specified coordinates e...
pinMode(buttonPin,INPUT); 改为 pinMode(buttonPin,INPUT_PULLUP); 就可以使用引脚内部的上拉电阻。这个电阻也很大,一般为20~50kΩ。它也可以稳定电平,并可以稳定在高电平。 如下程序可实现按一下按键灯开,再按一下灯灭。 intbuttonPin=2;intledPin=13; ...
int chose = 0, alarm_choose = 0 ,ButtonDelay = 10, frequence = 2093; int alarm_hour = 7, alarm_minute = 30, alarm_second = 0; //闹钟时间 double Temperatures, Temp_Alarm = 30 ; void setup(){ for(int i = 2;i <= 13; i++){ ...
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...
loop() 在创建setup 函数,该函数初始化和设置初始值,loop()函数所做事的正如其名,连续循环,允许你的程序转变状态和响应事件.能够用它来实时控制arduino 板。示例: int buttonPin = 3; void setup() { Serial。begin(9600); //初始化串口 pinMode(buttonPin, INPUT); //设置 3 号引脚为输入模式} void ...
fix(zigbee): Enable the internal pull-up resistor for BUTTON_PIN by @lboue in #10491 Tone Adds setToneChannel() implementation by @SuGlider in #10305 OpenThread OpenThread Example Improvement by @SuGlider in #10299 Matter feat(matter): initial commit with arduino matter lib by @SuGlider ...
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 ...