pinMode(data_pin, INPUT_PULLUP);#elsepinMode(irq_pin, INPUT);digitalWrite(irq_pin, HIGH);pinMode(data_pin, INPUT);digitalWrite(data_pin, HIGH);#endifswitch(irq_pin) {#ifdef CORE_INT0_PINcase CORE_INT0_PIN:irq_num = 0;break;#endif#ifdef CORE_INT1_PINcase CORE_INT1_PIN:irq_num...
https://www.arduino.cc/en/Tutorial/BuiltInExamples/InputPullupSerial */ void setup() { //start serial connection Serial.begin(9600); //configure pin 2 as an input and enable the internal pull-up resistor pinMode(2, INPUT_PULLUP); pinMode(13, OUTPUT); } void loop() { //read the ...
Serial.println("中断测试实验"); pinMode(interruptPin_0, INPUT_PULLUP); //先把引脚设置为上拉输入模式 pinMode(interruptPin_1, INPUT_PULLDOWN); //这个我们设置为下拉 //我们通过调用attachInterrupt函数将中断附加到引脚 //handleInterrupt 是中断触发后的触发函数 //FALLING 代表下拉触发,也就是由高电平...
http://www.arduino.cc/en/Tutorial/InputPullupSerial This example code is in the public domain */ void setup() { //start serial connection Serial.begin(9600); //configure pin2 as an input and enable the internal pull-up resistor pinMode(2, INPUT_PULLUP); pinMode(13, OUTPUT); } void...
http://www.arduino.cc/en/Tutorial/InputPullupSerial This example code is in the public domain */ void setup() { //start serial connection Serial.begin(9600); //configure pin2 as an input and enable the internal pull-up resistor
引脚模式选择,模式有INPUT(输入), OUTPUT(输出), INPUT_PULLUP(上拉输入,自动拉高电平) //GPIO FUNCTIONS #defineINPUT0x00 //输入 #defineINPUT_PULLUP0x02 //上拉输入 #defineINPUT_PULLDOWN_160x04// PULLDOWN only possible for pin16下拉输入仅适用于PIN16脚 ...
Good day, I have observed that INPUT_PULLDOWN doesn't enable the internal pulldown but rather enables a pull up. pinMode ( sensor1, INPUT_PULLDOWN ); pinMode ( sensor2, INPUT_PULLDOWN ); where sensor1 and sensor2 are gpio 14 and gpio 12 ...
//使用于通用的Arduino的引脚模式定义typedefenum{INPUT=0x0,OUTPUT=0x1,INPUT_PULLUP=0x2,INPUT_PULLDOWN=0x3,}PinMode;//RPI Pico的引脚模式定义/* Define mock symbols to nullify PinMode definitions */#define PullNone TempPullNone#define PullUp TempPullUp#define PullDown TempPullDown#define OpenDra...
数字引脚 0~15可以设置为 INPUT,OUTPUT 或者 INPUT_PULLUP 模式。引脚 16可以设置为INPUT,OUTPUT 或者 INPUT_PULLDOWN_16 模式。在启动时,引脚被配置为INPUT。 引脚同样可以提供其他功能,像串行,I2C,SPI。这些函数通常需要使用相应的库。下图为ESP-12模块的引脚图: ...
pinMode(BUTTON_PIN, INPUT); instead of pinMode(BUTTON_PIN, INPUT_PULLUP);. When you run the program you will have the same result: the default state for the button is HIGH, and when you press it, its states goes to LOW. Pull down resistor This is another option you can choose, ...