Project Relay Module

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<syntaxhighlight lang="c">

/*

 based on Blink, Arduino's "Hello World!"
 Turns on a Relay on for one second, then off for one second, repeatedly.
 The Tinkerkit Relay Module is hooked up on O1


 This example code is in the public domain.
*/
  1. define O0 11
  2. define O1 10
  3. define O2 9
  4. define O3 6
  5. define O4 5
  6. define O5 3
  7. define I0 A0
  8. define I1 A1
  9. define I2 A2
  10. define I3 A3
  11. define I4 A4
  12. define I5 A5


void setup() {

 // initialize the digital pin as an output.
 pinMode(O1, OUTPUT);     

}

void loop() {

 digitalWrite(O1, HIGH);   // turn the relay on
 delay(1000);              // wait for a second
 digitalWrite(O1, LOW);    // turn the relayoff
 delay(1000);              // wait for a second

}

</syntaxhighlight>