You'll need to use a transistor to drive the relay.
A circuit like this will work on the green (5v) wire. Use a relay with a 12V coil.
http://www.sentex.ca/~mec1995/gadgets/relays/relay5.gif
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You'll need to use a transistor to drive the relay.
A circuit like this will work on the green (5v) wire. Use a relay with a 12V coil.
http://www.sentex.ca/~mec1995/gadgets/relays/relay5.gif
I've bought 2 of these, which should hopefully work on the +5V green wire ;
http://www.ebay.com.au/itm/IACS-1-Ch...5b20544&_uhb=1
Attachment 2022
Have yet to test it yet :)
That looks like it will work. The issue is the ALP is sending I believe standard TTL I/O. (+5v). Which is just not enough to drive a relay. Using that device will allow you to drive a relay based on the Vcc on the board triggering when the ALP goes high. Let us know how you make out.
From the pdf specification , at 3 volts , it pulls 60ma , i hope it works though as i tested the outputQuote:
Originally Posted by winterbrew
of the source , the max is 45ma .
http://www.iacs.co.uk/download/i/mar...0Datasheet.pdf
Which voltage did you order ?
Morale : please Al team , implement an easy way to trigger a 12 volts relay ....would make our life easier ,
thouh it is already in their plans :courage:
Yes, although at 12V supply voltage (the ones I ordered as I will be switching a small 12Vdc load), its quoted as < 45mA 'on'
What are you up to WB? Post in the secure Aussie section if its what I think you are doing...
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I see , just to let you know my experience :Quote:
Originally Posted by winterbrew
i bought a very tiny relay , coil rated 3volts dc , the wires were not able to trigger such relay ...pita.
Thanks Tman - will let you know :)
This is also quoted in the ebay text ;
Quote:
Control signal voltage: Data level (3.3v) or TTL (5v) Range is 1-12v DC - takes less than 20mA from logic source.
At 20ma ....i think you got the solution !
http://www.ebay.com.au/itm/Mini-1-Ch...item461ad3e7fa
I found this cheapy , is it working on the same principle ? they say TTL source for the signal , i guess it needs
another source (5volts) to trigger the relay ....not very familiar with Arduino system.
Quote:
Originally Posted by winterbrew
A bit confusing, as it says 1 channel, but shows 2 x VCC inputs, which I originally assumed would be for a second channel ?Quote:
Originally Posted by Tman
It also says 5V relay, whereas mine, you could specify various input voltages, 12V, 24V etc. I'm not upto speed on electronics, so will let one of the others chime in !