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  • Overall Rating: 4
  • Price: 5
  • Quality: 5
  • Ease Of Use: 3
  • Usefulness: 4
Quite nice shield for controlling loads – 2 Channel Relay Shield Module for Arduino w/ XBee / BTBee Interface Reviews

posted by rickkonz on 08/31/2012 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

Pros:
Easiest way to get 2 relays under arduino control, can replace other xbee sheields, but even if you dont need that, its still a good buy. Screw terminals for Vin are a good start. Jumpers to configure the xbee connection so that you can keep the hardware serial going to the host computer.
Cons:
While the relays are rated to 250v, there is no way I would do that with the board layout, the ground plane is contiguous around the relay and screw terminal pins so it doesn't have the required clearance to be safe.
Other:
Not tried the Nrf or other wireless headers yet
Bottomline:
For low voltage switching its a great shield. Mains voltage - no way.

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