Each of the 14 digital pins on the Uno can be used as an input or output, using pinMode(),digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive 20 mA as recommended operating condition and has an internal pull-up resistor (disconnected by...
pinMode(2, INPUT_PULLUP); //Button 1 with internal pull up to chage track pinMode(3, INPUT_PULLUP); //Button 2 with internal pull up to play/pause pinMode(3, INPUT_PULLUP); //Button 2 with internal pull up to fast forward music.setVolume(5); // 0 to 7. Set volume level mu...
Each of the 14 digital pins on the Uno can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive 20 mA as recommended operating condition and has an internal pull-up resistor (disconnected ...
按下按钮时,将其拉到地面。 pinMode(2, INPUT_PULLUP);pinMode(3, INPUT_PULLUP);pinMode(4, INPUT_PULLUP);pinMode(5, INPUT_PULLUP); 下面的代码块用于在按下按钮时播放歌曲。它读取每个按钮的数字值,当它变低(零)时,它假设按钮被按下并通过调用所需的函数播放相应的音调。 if(digitalRead(2)==0...
Each of the 14 digital pins on the Uno can be used as an input or output, using pinMode(), digitalWrite(), and digitalRead() functions. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20...
extern"C"{#endifvoidyield(void);#defineHIGH0x1#defineLOW0x0#defineINPUT0x0#defineOUTPUT0x1#defineINPUT_PULLUP0x2#definePI3.1415926535897932384626433832795#defineHALF_PI1.5707963267948966192313216916398#defineTWO_PI6.283185307179586476925286766559#defineDEG_TO_RAD0.017453292519943295769236907684886#defineRAD_TO_DEG57.29577...
//修改后 #define INTERRUPT_PIN 13 // use pin 2 on Arduino Uno & most boards #define LED_PIN 2 // (Arduino is 13, Teensy is 11, Teensy++ is 6) 完整代码: // I2C device class (I2Cdev) demonstration Arduino sketch for MPU6050 class using DMP (MotionApps v2.0) // 6/21/2012 by ...
The BK1088 already comes with 40K internal pull-up resistors on the i2c bus. Probabbly, no external pull-up resitores will be needed. However, depending on the size of the bus, consider using external pull-up resistors; BK1086/88 has an internal automatic tuning technology, which can autom...
If you are using Arduino Mini Pro, UNO or similar, pay attention to the pin 13 and the use of an internal pull-up resistor. This pin has a LED and a resistor connected on the board. When this pin is set to HIGH, the LED comes on. If you use the internal pull-up resistor of ...
Encoder?Hall sensors interface: Integrated 3.3kΩ pullups (configurable) I2C interface: Integrated 4.7kΩ pullups (configurable) Configurable pinout: Hardware configuration - soldering connections Arduino headers: Arduino UNO, Arduino MEGA, STM32 Nucleo boards... ...