led閃爍程式

imingho

1. int ledpin = 3;
   
2. 
   
3. // the setup routine runs once when you press reset:
   
4. void setup() {               
   
5.   // initialize the digital pin as an output.
   
6.   pinMode(ledpin, OUTPUT);     
   
7. }
   
8. 
   
9. // the loop routine runs over and over again forever:
   
10. void loop() {
    
11.   digitalWrite(ledpin, HIGH);   // turn the LED on (HIGH is the voltage level)
    
12.   delay(3000);               // wait for a second
    
13.   digitalWrite(ledpin, LOW);    // turn the LED off by making the voltage LOW
    
14.   delay(1000);               // wait for a second
    
15. }

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