void setup() { // initialize the LED pin as an output: pinMode(ledPin, OUTPUT); // initialize the pushbutton pin as an input: pinMode(buttonPin, INPUT); } void loop() { // readthe state of the pushbutton value: buttonState = digitalRead(buttonPin); // check if the pushbutton ...
5, 6, 9, 10, and 11. On the Arduino Mega, it works on pins 2 through 13. Older Arduino boards with an ATmega8 only support analogWrite() on pins 9, 10, and 11. You do not need to call pinMode() to set the pin as an output before calling analogWrite(). ...
//Pin13 has an LED connected on most Arduino boards. //give it a name: Int led=13; //the setup routine runs once when you press reset Void setup(){//initialize the digital pin as an output. pinMode(led, OUTPUT); } //the loop routine runs over and over again forever: ...
// Pin 13 has an LED connected on most Arduino boards. // give it a name: int led = 13; // the setup routine runs once when you press reset: void setup() { // initialize the digital pin as an output. pinMode(led, OUTPUT); ...
实测中确实是这样,在 A6、A7 引脚上,想运行 Blink 例程,使用 pinMode(A6, OUTPUT),digitalWrite(A6, HIGH) 都不会得到你所需要的效果。更崩溃的是,你可能改变了芯片内部你原本不想改变的寄存器配置,没准会有诡异意外发生。玩 Nano,或者是贴片AVR的 Arduino 朋友们,可要注意。
//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 ...
int motorPin = 9; // Transistor base connected to digital pin 9 void setup() { pinMode(buttonPin, INPUT); // Initialize button pin as an input pinMode(motorPin, OUTPUT); // Initialize motor pin as an output } void loop() { ...
***/#include"LED.h"#include"Arduino.h"LED::LED(byte p,bool state):pin(p){pinMode(pin,OUTPUT);digitalWrite(pin,state);}LED::~LED(){disattach();}voidLED::on(){digitalWrite(pin,HIGH);}voidLED::off(){digitalWrite(pin,LOW);}boolLED::getState(){returndigitalRead(pin);}voidLED...
如果引脚被设置为INPUT，digitalWrite()会激活输入引脚的上拉电阻。If the pin is configured as an INP...
对于Arduino，用pinMode将IO口设为OUTPUT的时候，其实IO的状态为“强推挽”，也就是说设为高电平时，I...