arduinoreceive.pde

来自「利用MFC控制Arduino第11腳燈號,自行開發」· PDE 代码 · 共 38 行

 
int ledPin = 11;      // LED connected to analog pin 11
//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
  Serial.begin(9600);        // connect to the serial port
}

void loop()
{
 // val = analogRead(analogPin);   // read the input pin 
 // send data only when you receive data:
if (Serial.available() > 0) { 
  val = Serial.read();      // read the serial port
		// say what you got:
		//Serial.print("I received: ");
		//Serial.println(val, DEC);

   if (val == '9' ) {
      val = val - '0';          // convert from character to number
            digitalWrite(ledPin,HIGH);
        }
   
   if (val == '8'  ) {
      val = val - '0';          // convert from character to number        
      digitalWrite(ledPin, LOW);      
   }
      
   if (val >= '0' && val <= '7' ) {
      val = val - '0';          // convert from character to number
      analogWrite(ledPin, val*(255/7));  // analogRead values go from 0 to 1023, analogWrite values from 0 to 255
   }
 }
}