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Relay shield for Arduino
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Relay shield for Arduino

( DFR )
SG$26.50


The DFRobot Relay shield is capable of controlling 4 relays.  The max switching power could be DC 90W or AC 360VA. It could be directly controlled by Arduino/DFRduino through digital IOs with external 9v supply. With buildin xbee type socket, it can be wirelessly controlled via Xbee/bluetooth/WPM.  Make it an ideal solution for home automation and robotics purpose.

**Please Note: For using with Arduino Uno, you need to be careful the pins on the Shield should not touched with USB connector when they are connected.

Specification

  • Up to 4 Relay with photo-coupled circuit
  • Contact Rating 3A AC 120V / DC 24V
  • Max Switching Voltage AC 240V / DC 60V
  • Max Switching Current 5A
  • Max Switching Power AC 360VA / DC 90W
  • Electrical Life (Min) 100,000 Operations
  • Mechanical Life (Min) 10,000,000 Operations
  • Safety Standard(relay) UL cUL TUV CQC
  • Coil Working Voltage 9VDC
  • Weight 165g
  • Working temperature -30℃ to +85℃
  • Working temperature 40% - 85%

Documents

 

 

 

Connection Diagram

In this sample connection diagram it shows how some LEDs can be controlled via relays, while this is a bit of overkill for controlling LEDs its only meant to be an example. These relays can be used to control lamps, or some other mid-voltage range appliances.

Sample Code

byte relayPin[4] = {2,3,4,5};

//D2 -> RELAY1
//D3 -> RELAY2
//D4 -> RELAY3
//D5 -> RELAY4

void setup(){
for(int i = 0; i < 4; i++)  pinMode(relayPin[i],OUTPUT);
}

// an sample to switch the 4 relays

void loop(){

int i;
for(i = 0; i < 4; i++)  digitalWrite(relayPin[i],HIGH);
delay(1000);
for(i = 0; i < 4; i++)  digitalWrite(relayPin[i],LOW);
delay(1000);

}


Availability

In Stock: 3

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