View Full Version : What's the diffrence in the 5V 4-Channel Relay vs a ZP-4WAY-RB

05-09-2012, 04:55 PM
Whats the diffrence between 5V 4-Channel Relay Module Shield (http://www.ebay.co.uk/itm/310413244680;jsessionid=13165F66593171802210D0A286 4AFFA5?ru=http%3A%2F%2Fwww.ebay.co.uk%2Fsch%2Fi.ht ml%3F_sacat%3D0%26_nkw%3D310413244680%26_rdc%3D1) and ZP-4WAY-RB (http://www.zappautomation.co.uk/zp4wayrb-p-511.html?cPath=143)

05-09-2012, 05:25 PM
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 (http://www.skpang.co.uk/catalog/relay-shield-p-842.html) tho this one uses SolidState relays not electromagnetic ones.