Serial.println("3. Press 'R + [ms]' to repeat testing"); Serial.println("4. Press 'C' to exchange output pin from pin 13# and pin 12#."); Serial.println("Default interval set to 1 second."); Serial.println("Default Pin 13# will drag to HIGH until time reached."); Serial.pr...
If the pin has been configured as an OUTPUT with pinMode(), its voltage will be set to thec...
pinMode( ledPin, OUTPUT ) ; ELECHOUSE_cc1101.Init( F_433 ); // Frequency: 433MHz //ELECHOUSE_cc1101.Init( F_868 ) ; // Frequency: 868MHZ //ELECHOUSE_cc1101.Init( F_915 ) ; // Frequency: 915MHz if ( IS_GARAGE_STATION ) ELECHOUSE_cc1101.SetReceive() ; // Do listen else if...
voidsetup() { // initialize the LED pin as an output: 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 press...
如果没有将pinMode() 设置为OUTPUT,然后将一个LED连接至pin。当调用digitalWrite(HIGH)时,LED会很暗淡。因为如果没有明确的设置pinMode(),digitalWrite()将默认启用内部上拉电阻,这个电阻有很强的限流作用。 NOTE: If you do not set the pinMode() to OUTPUT, and connect an LED to a pin, when calling...
LL_GPIO_SetOutputPin(GPIOA,LL_GPIO_PIN_1); GPIO 函数库 Arduino 数字 I/O 函数库 digitalRead(pin) digitalWrite(pin, value) pinMode(pin, mode) STM32 函数库 标准库(STM32F103xx) 复位和时钟设置(RCC) void RCC_DeInit(void); void RCC_HSEConfig(uint32_t RCC_HSE); ...
Analog input, analog output, serial output Reads an analog input pin, maps the result to a range from 0 to 255 and uses the result to set the pulsewidth modulation (PWM) of an output pin. Also prints the results to the serial monitor. ...
bool setPinModes(); int pin = GPIO5; bool initialized; void setup() { initialized = setPinModes(); } void loop() { if( initialized ) { //do something } } bool setPinModes() { if( pin < 0 ) return false; pinMode( pin, OUTPUT ); return true; } 示例2:在...
// constants won't change. They're used here to set pin numbers: const int buttonPin = 2; // the number of the pushbutton pin const int ledPin = 13; // the number of the LED pin // Variables will change: int ledState = HIGH; // the current state of the output pin ...
pinMode(13, OUTPUT); //Set pin 13 as an 'output' pin as we will make it output a voltage. digitalWrite(13, HIGH); //This turns on pin 13/supplies it with 3.3 Volts. } The line of code starting with ‘pinMode’ sets pin 13 as an output. This enables us to write a value to...