Instructions

IDUINO for maker’s life
www.openplatform.cc 11
3. Example
This example controls a LED(or other high power load) via the Relay module.
Physical connection as below:
The example code as below:
*********Code begin*********
int led = 13;
// the setup routine runs once when you press reset:
void setup() {
// initialize the digital pin as an output.
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
*********Code End*********