Example 03: Control the Electric


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  The basic Energia example.
  This example code is in the public domain.
#define RELAY_PIN    9

// the setup routine runs once when you press reset:
void setup() {
  // initialize the digital pin as an output.

// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(RELAY_PIN, HIGH);   // turn the relay on (HIGH is the voltage level)
  delay(1000);                     // wait for a second
  digitalWrite(RELAY_PIN, LOW);    // turn the relay off by making the voltage LOW
  delay(1000);               // wait for a second
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