如果该引脚通过pinMode()设置为输出模式(OUTPUT),您可以通过digitalWrite()语句将该引脚设置为HIGH(5伏特)或LOW(0伏特/GND)。 如果该引脚通过pinMode()设置为输入模式(INPUT),当您通过digitalWrite()语句将该引脚设置为HIGH时, 这与将该引脚将被设置为输入上拉(INPUT_PULLUP)模式相同。 获得更多关于输入上拉(INPU...
Example:a = arduino; pin—Pin number character vector Pin number on the physical hardware, specified as a character vector. Example:D3orA1. Note If you connect to ESP32 board and the pin'smodeis set toAnalogInput, the pin number must always correspond to a digital pin. For details, see...
set_sleep_mode(SLEEP_MODE_PWR_DOWN);//设置休眠模式。 //开始设置看门狗中断,用来唤醒。 MCUSR&=~(1<<WDRF); WDTCSR|=(1<<WDCE)|(1<<WDE); WDTCSR=1<<WDP1|1<<WDP2; WDTCSR|=_BV(WDIE); } voidloop() { if(data>=5) { digitalWrite(ledPin,HIGH); delay(500); digitalWrite(ledPin...
(PINC & B00001000)); //While analog input 3 is low. // PORTD |= B00000100; //Set output 2 high. // delayMicroseconds(100); //Delay for 100 us. // PORTD &= B11111011; //Set output 2 low. // //Channel 5 // while(!(PINC & B00010000...
Controller found ");break;}pinMode(input1,OUTPUT);pinMode(input2,OUTPUT);pinMode(input3,OUTPUT);pinMode(input4,OUTPUT);}voidSTOP(){digitalWrite(input1,LOW);digitalWrite(input2,LOW);digitalWrite(input3,LOW);digitalWrite(input4,LOW);}//停止函数voidRUN(){digitalWrite(input1,HIGH);digitalWrite(...
pinMode(ledPin, OUTPUT); // 初始化按键作为输入: pinMode(buttonPin, INPUT); } void loop(){ // 读取按键值: buttonState = digitalRead(buttonPin); // 检查按键是否被按下. //如果是 buttonState就为high: if (buttonState == HIGH) { ...
("Enabling DMP...")); mpu.setDMPEnabled(true); // enable Arduino interrupt detection Serial.print(F("Enabling interrupt detection (Arduino external interrupt ")); Serial.print(digitalPinToInterrupt(INTERRUPT_PIN)); Serial.println(F(")...")); attachInterrupt(digitalPinToInterrupt(INTERRUPT_PIN)...
digitalWrite( ledPin, HIGH ) ; delay( motor_open_drive_time ) ; } } // End open/close actions } ELECHOUSE_cc1101.SetReceive() ; // Do continue listening } } // Called if Arduino receives data over serial link void serialEvent( void ) { ...
pinMode(buttonPin, INPUT); } // loop 中每次都检查按钮,如果按钮被按下,就发送信息到串口 void loop() { if (digitalRead(buttonPin) == HIGH)//通过eigitalRead读取到针脚3的电平值是否为高 serialWrite('H');//是高就通过串口写出H else
digitalWrite(pin, HIGH); }else{switch(digitalPinToTimer(pin)) {//XXX fix needed for atmega8#ifdefined(TCCR0) && defined(COM00) && !defined(__AVR_ATmega8__)caseTIMER0A://connect pwm to pin on timer 0sbi(TCCR0, COM00); OCR0= val;//set pwm dutybreak;#endif//为了简化篇幅,省略部分...