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  • Quite nice shield for controlling loads

    posted by rickkonz on 08/31/2012
    7

    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.

    OtherThoughts:

    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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