Pins 2-13: General-purpose I/O pins. PWM Pins (3, 5, 6, 9, 10, 11): Support Pulse Width Modulation, ideal for applications like controlling motors and dimming LEDs. Use functions likepinMode(),digitalWrite(), anddigitalRead()to interact with these pins. Analog Pins (A0-A5) Analog pi...
}if(!RS485.setPins(-1, -1, -1, RS485_RTS_PIN)) {//-1 保持引脚不变Serial.print("Failed to set RS485 pins"); }///esp_err_t uart_set_line_inverse(uart_port_t uart_num, uint32_t inverse_mask)uart_set_line_inverse(RS485_SerialNum, UART_SIGNAL_RTS_INV);//特殊,修改输出或输...
Pins with a ‘~’ mark beside them on the Arduino support PWM. See if you can find a small LED to connect to pin 11 for this exercise.The first parameter (where you see ’11’) in this PWM code sample just specifies the pin number you’re controlling, as is the case with the ...
// initialize the library with the numbers of the interface pinsLiquidCrystal lcd(13, 12, 11, 10, 9, 8);int pin = 2; //定义引脚为D2unsigned long duration=0; //定义duration变量为无符号长整数型变量int i = 0;void setup(){pinMode(pin, INPUT); //设置引脚为输入模式// set up the ...
· pinMode(pin, mode) 数字IO口输入输出模式定义函数,pin表示为0～13, mode表示为INPUT或OUTPUT。· digitalWrite(pin, value) 数字IO口输出电平定义函数,pin表示为0～13,value表示为HIGH或LOW。比如定义HIGH可以驱动LED。· int digitalRead(pin) 数字IO口读输入电平函数,pin表示为0～13,value表示为HIGH或LOW...
pinMode(LEDPin, OUTPUT); 数字操作现在我们已经定义了 pin,我们可以开始使用它了。与Python 一样,可以通过将引脚设置为高或低来打开或关闭引脚。这是通过使用digitalWrite()函数来完成的,使用该函数,您可以提供 pin 号以及高电平或低电平;例如:digitalWrite(LEDPin, HIGH); ...
https://www.arduino.cc/en/Tutorial/BuiltInExamples/toneMultiple */ (3)设置函数 空的设置函数 void setup() { } (4)循环函数 void loop() { // turn off tone function for pin 8: 针脚8 静音 noTone(8); // play a note on pin 6 for 200 ms: ...
// pin=中断引脚,function=中断函数,mode=中断触发模式 attachInterrupt(pin, function, mode); 如果在程序运行过程不需要使用外部中断了,可以用中断分离函数来取消这一中断设置: detachInterrupt(interrupt); detachInterrupt(Pin);。 3、示例 void setup()
pinMode(LED_BUILTIN, OUTPUT); Serial.begin(115200); // Just to know which program is running on my Arduino Serial.println(F("START " __FILE__ " from " __DATE__ "\r\nUsing library version " VERSION_IRREMOTE)); Serial.print(F("Send IR signals alternating at pin 3 and 4")); ...
pinMode(LED,OUTPUT);/*LED set as output*/ } voidloop(){ TouchVal=touchRead(Touch);/*read touch pin value*/ Serial.print(TouchVal); if(TouchVal<threshold){/*if touch value is less than threshold LED ON*/ digitalWrite(LED,HIGH); ...