Andino M1平台-使用Arduino IDE開發(12)_Analog I/O

1. 電路圖:

2. 程式:

int ledPin = 4;      // LED connected to digital pin SDA(PWM0)
int analogPin = 3;   // potentiometer connected to analog pin 3
int val = 0;         // variable to store the read value

void setup()
{
  pinMode(ledPin, OUTPUT);   // sets the pin as output
}

void loop()
{
  val = analogRead(analogPin);   // read the input pin
  analogWrite(ledPin, val / 4);  // analogRead values go from 0 to 1023, analogWrite values from 0 to 255
}

3. 結果: