Input Voltage (limits): 6-20V Digital I/O Pins: 54 (of which 15 provide PWM output) Analog Input Pins: 16 DC Current per I/O Pin: 40mA DC Current for 3.3V Pin: 50mA SRAM: 8KBFlash Memory 256KB of which 8 KB used by bootloader ...
// initialize the library with the numbers of the interface pinsLiquidCrystal lcd(13, 12, 11, 10, 9, 8);int pin = 2; //定义引脚为D2unsigned long duration=0; //定义duration变量为无符号长整数型变量int i = 0;void setup(){pinMode(pin, INPUT); //设置引脚为输入模式// set up the ...
对于Arduino，用pinMode将IO口设为INPUT的时候，其实IO的状态为浮空输入，浮空输入也称高阻输入，也就是...
Why you canonly really use 4 Analogue pins(IC2 is a problem). The ADC or Analogue to Digital Converter takes an input voltage and converts it into a digital value. With the standard setup you can measure a voltage between 0V and 5V with a resolution of 4.9mV so you can get a lot...
The first parameter (where you see ’11’) in this PWM code sample just specifies the pin number you’re controlling, as is the case with the previous example. Play around with this and adjust the values, as well as observe the voltage across the LED’s pins while you’re doing it. ...
格瑞图:Arduino-0005-内置示例-数字串口读取 Digital Read Serial 格瑞图:Arduino-0006-内置示例-亮度调节 Fade 1、示例代码及解析 (1)代码 /*ReadAnalogVoltageReads an analog input on pin 0, converts it to voltage, and prints the result to the Serial Monitor.Graphical representation is available using...
AREF stands for Analog Reference Voltage which is a reference voltage for analog inputs. Analog Pins 16个模拟量输入引脚(10位的分辨率,对应于0-1024) There are 16 analog pins incorporated on the board labeled as A0 to A15. It is important to note that all these analog pins can be used as...
pinMode(): void pinMode (uint8_t pin, uint8_t mode) 设置引脚模式 配置引脚为输出或输出模式。 参数: pin 引脚编号 mode: INPUT, OUTPUT, 或 INPUT_PULLUP。 例子: pinMode(ledPin, OUTPUT); // sets the digital pin as output 注解: 模拟引脚也可以当作数字引脚使用, 编号...
input voltage (limits) 6-20v digital i/o pins 54 (of which 15 provide pwm output) analog input pins 16 dc current per i/o pin 40 ma dc current for 3.3v pin 50 ma flash memory 256 kb of which 8 kb used by bootloader sram
With Arduino you can usedigital pinsto either read (binary) data from a sensor, or write (binary) data to an actuator. It’s quite simple. Either you set the pin as: You are learning how to use Arduino to build your own projects?