INTRODUCTION:

One of the most interesting projects for your boards is perhaps being

able to control High power devices like Lamps, water pumps, garage

doors and so on. But interfacing with high power and AC is quite a 

dangerous task when building the circuitry. Relays allow for interfacing

an external electrical circuit like a switch. With relays you can now

connect external circuit or devices directly to your Arduino.

 DFRobot Relay Shield  V2.1 is a completely new design which is capable

of controlling 4 relays at a time. The max switching power DC 90W or AC

360VA gives direct control by Arduino/DFRduino controllers through digital

I/Os with external 9V supply. With built-in Xbee socket, it can be wireless

remote controlled via Xbee/bluetooth/WPM.

This relay shield is an ideal solution for home automation and robotics purposes.

FEATURES:

Compatible with Arduino UNO Rev3

Each Relay has its own test button to test the connection

Standard DFRobot 3 Pin out

XBee I/O direct control

SPECIFICATION:

Compatible with Arduino Rev3

4 buttons to test module

LED status indicator of relay

Support Xbee IO directly control

Xbee socket for wireless communication

Selectable digital IO pin for control(Default digital 2,7,8,10) 

6 channels Analog IO & 13 channels Digital IO 

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

Working temperature  -30℃ to +85℃

Working temperature  40% - 85%

Size:95x65mm