1. #1
    Whats the diffrence between 5V 4-Channel Relay Module Shield and ZP-4WAY-RB
    Last edited by Lee Roberts; 05-09-2012 at 04:17 PM. Reason: Cleaned up links

  2. Nothing, they are the same board out of China, but with Zapp you get support... though given there's bugger all to go wrong on those I'd buy 2 of the ebay ones and keep one as a backup...

    There are a lot of Arduino Shields... heres another Relay one: Relay Shield [AR-RELAY] - 14.90 : SK Pang Electronics, Arduino, Sparkfun, GPS, GSM tho this one uses SolidState relays not electromagnetic ones.

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