例如,如果连接到引脚3,则使用digitalPinToInterrupt(3)作为attachInterrupt()的第一个参数。 表1:Arduino 开发板的外部中断引脚 表2:Arduino 开发板的中断引脚对应的中断编号 2、一个从轮询到中断的代码改进 1) 轮询示例 方式1:轮询的方式按按钮,点亮LED,代码: //pins const uni
The exception is the Arduino Nano’s A6 and A7 pins, which can only be used as analog inputs.pinMode(A0, OUTPUT); digitalWrite(A0, HIGH);Some pins also have additional functions which you can find in the table below:Pin numberPin nameTypeSpecial function 1 D1/TX Digital Pin Serial ...
Arduino Unois a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everyth...
Within the Hardware interrupt there are two categories: External interrupts and Pin Change Interrupts. The nomenclature here is confusing since all hardware interrupts are external to the chip. But the things we are now calling External Interrupts are limited to only a couple pins, while the Pin ...
MsTimer2- uses the timer 2 interrupt to trigger an action every N milliseconds. OneWire- control devices (from Dallas Semiconductor) that use the One Wire protocol. PS2Keyboard- read characters from a PS2 keyboard. Servo- provides software support for Servo motors on any pins. ...
the ATmega4809 can be found in products like the Arduino Uno WiFi Rev2 and the Arduino Nano Every. Some of their key features include multiple serial ports, SPI and i2c interfaces, built-in programmable logic, up to 16 analog input pins, and an analog comparator with a built-in programmabl...
Supported pins for PinChangeInterrupt: SeePCINT pin tableat the bottom for more details. Arduino Uno/Nano/Mini: All pins are usable Arduino Mega: 10, 11, 12, 13, 50, 51, 52, 53, A8 (62), A9 (63), A10 (64), A11 (65), A12 (66), A13 (67), A14 (68), A15 (69) Arduino...
·MsTimer2- uses the timer 2 interrupt to trigger an action every N milliseconds. ·OneWire- control devices (from Dallas Semiconductor) that use the One Wire protocol. ·PS2Keyboard- read characters from a PS2 keyboard. ·Servo- provides software support for Servo motors on any pins. ...
int analogRead(pin) 模拟IO口读函数,pin表示为0～5(Arduino Diecimila为0～5,Arduino nano为0～7)。比如可以读模拟传感器(10位AD,0～5V表示为0～1023)。 analogWrite(pin, value) - PWM 数字IO口PWM输出函数,Arduino数字IO口标注了PWM的IO口可使用该函数,pin表示3, 5, 6, 9, 10, 11,value表示为0～25...
The following is for the Arduino Uno and any Arduino compatible that has a single serial port shared between the USB serial connection and the RX/TX pins. If you are using a board with an additional hardware serial port, such as the Leonardo, WiFi Rev2, Nano Every, or any ARM-based bo...