5V Relay Board

1. Introduction

The module is uses SRD relay module to control high-votage elecrical devices. (maximum 250V).It can be used in interactive projects and can also be used to control the lighting, electrical and other equipments.It can be controlled directly by a wide range of microcontrollers and can be controlled through the digital IO port, such as solenoid valves, lamps, motors and other high current or high voltage devices.

2.Pin Instrution

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:

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
}