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Need help on what relay to use with Arduino for 24vac valve
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Need help on what relay to use with Arduino for 24vac valve

by argo on Sat Apr 25, 2009 9:20 pm

Need some help on what relay would be best for this application.
I have successfully completed a project using the arduino with xbees. Then I thought wait, now I want to send a signal to an arduino via xbees and tell the arduino to open a sprinkler water valve for 30 minutes. The water valve information says "24vac (50/60Hz , inrush = .4amps, holding = .2amps.

I've seen the diagram on the Arduino site and have seen the adafruit video blog on relays but since my background is in software and I am getting a little bit brave now I would like just a little guidance on what relays I should buy. I've read about solid state vs mechanical, pulse vs always current and so on...

I have 4 sprinkler water valves.

P.S. If anyone knows what relays I should buy for 120v lamps that would be great.
Thanks...

argo
 
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Joined: Wed Oct 15, 2008 12:27 am

Re: Need help on what relay to use with Arduino for 24vac valve

by adafruit on Sat Apr 25, 2009 9:50 pm

this relay should be OK http://search.digikey.com/scripts/DkSea ... e=PB370-ND
check the xbee relay video and schematic on the blog for ideas. you can control it thru xbees using the arduino. connect the relay to the digital out pin with a transitor buffer and a diode. test it out with low voltage LEDs first of course

and post your progress!

adafruit
 
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Re: Need help on what relay to use with Arduino for 24vac valve

by argo on Sat Apr 25, 2009 10:30 pm

Thanks for the quick reply. I will update my progress.

Like I mentioned before I just needed a little nudge in the right direction. Thanks to this forum I now have my xbees sending info to my arduino+WIZnet which then passes the info to my home php server . I just needed a little help then too.

Thanks again for your products and informational site. Keep up the good work. :D

Argo from Florida....

argo
 
Posts: 11
Joined: Wed Oct 15, 2008 12:27 am

Re: Need help on what relay to use with Arduino for 24vac valve

by adafruit on Mon Apr 27, 2009 11:39 am

great, dont forget to post up your code, photos, etc to show off!

adafruit
 
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Please be positive and constructive with your questions and comments.