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Relay Shield for Arduino
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Relay Shield for Arduino

Price per Unit (piece): $19.50

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Relay shield for Arduino. This shield makes it easy to switch high current loads, both AC and DC. This Arduino shield comes fully assembled with 4 relays on board. Each relay is rated at 3 Amps, 120VAC / 24VDC.  Also includes an xbee socket for use with wireless xbee modules.  Switch devices on/off remotely!

  • 4 Relays with photo-coupled circuit
  • Contact Rating 3A AC 120V / DC 24V
  • Max Switching Voltage AC 240V / DC 60V
  • 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
  • Working temperature -30℃ to +85℃

Using this Arduino shield to switch high currents is as easy as this:

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

//Digital pin 2 -> RELAY1
//Digital pin 3 -> RELAY2
//Digital pin 4 -> RELAY3
//Digital pin 5 -> RELAY4

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

void loop(){
  // loop through all 4 relays, switching off/on every second
  // Don't load this sketch, then go on a 2 week vacation!
  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);
 
}
---------------------------------------------------------------------

See the relay datasheet here.

See the Relay Shield for Arduino schematic here.

This shield comes fully assembled, and ships from the USA.


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