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andrewuk
Mon 23 July 2012, 13:30
Hi has anyone used one of these relay boards with their proximity sensors or got thoughts/ advice on them, just finishing the shopping list and then ill make a start putting it all together. Thanks

http://www.ebay.com/itm/12V-4-Channel-Relay-Shield-Module-Expansion-board-For-Arduino-ARM-PIC-AVR-DSP-/221065984862?pt=LH_DefaultDomain_0&hash=item33788f3b5e#ht_4202wt_934

bradm
Mon 23 July 2012, 19:29
I'm a little confused here. If I understand that board correctly, it's for outputs - you provide 12v to operate the relays, and a signal from a microprocessor can switch them - the output stage can support 120-240v, up to 10A.

Since the proxys are inputs to the computer, I don't understand how this board would apply. Did I miss something?

Red_boards
Mon 23 July 2012, 22:06
Depending on your BOB and sensors you may not need relays at all. I don't have any with the PMDX125

andrewuk
Tue 24 July 2012, 13:00
Thanks both of you for the replies,thought i had the right board but looks like i need to carry on looking, any ideas where i can get a board as Gerald describes in earlier posts. Thanks

MetalHead
Tue 24 July 2012, 13:03
What BOB are you using?

andrewuk
Tue 24 July 2012, 13:25
Hi mike its this one from a uk supplier http://www.diycnc.co.uk/html/uniport.html