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Old 03-04-2017, 01:03 PM   #1
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Default garage door receiver to turn on lights.

I have a customer that wants parking lot lights controlled from a garage door clicker. I have a clicker and receiving unit from a garage door opener that work. when you push the clicker it closes a set of dry contacts for about 1/10th of a second. Of course i need the lights to stay on until the next time the clicker is clicked then they would go off. 3 ways I have thought of doing this.
1. smart relay that would read the dry contact closure and then close another relay output that would stay closed until it was activated again then it would stay open. (existing definite purpose contactors with 120 v coile)

2. arduino with external relay. (same as 1)

3. alternating relay and ice cube relay that would seal in and then break the seal with the alternating relay.

Seems like this would be simpler somehow. Any ideas?
no internet connection is available. They lights are powered from a separate service in the middle of a 5 acre parking lot. They have 5 forklifts they want an opener in.
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Old 03-04-2017, 01:11 PM   #2
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mechanically held contactor
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Old 03-04-2017, 01:14 PM   #3
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mechanically held contactor
How does it release?
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Old 03-04-2017, 01:17 PM   #4
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When it gets a pulse of electricity, it changes state. When it gets another pulse of electricity, it changes state again. They are commonly used in low voltage lighting relay panels, but they can be had as a standalone thing. Google mechanically held contactor and do a little digging, I'm sure you'll find something that works for you in this application.
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Old 03-04-2017, 06:44 PM   #5
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Also called a latching relay
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Old 03-04-2017, 07:37 PM   #6
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Lift Master App on my iPhone controls my garage door and lights, but you need a WiFi internet connection
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Old 03-04-2017, 07:51 PM   #7
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mechanically held contactor
Bingo, no doubt about it.
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Old 03-04-2017, 09:06 PM   #8
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Most Gates use latching relays.
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Old 03-05-2017, 04:38 AM   #9
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What brand opener does he have? Liftmaster/Chamberlain have controls like this available, don't they? I've used one made by Chamberlain that was designed to turn on a lamp etc. and used the output to control a relay. I use Lutron Caseta to control the lighting in my shop, and a Pico with a visor clip to control them from the truck.

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Old 03-05-2017, 06:05 AM   #10
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What brand opener does he have? Liftmaster/Chamberlain have controls like this available, don't they? I've used one made by Chamberlain that was designed to turn on a lamp etc. and used the output to control a relay. I use Lutron Caseta to control the lighting in my shop, and a Pico with a visor clip to control them from the truck.

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Have you tested it to see how far away it works?
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Old 03-05-2017, 06:28 AM   #11
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There is some variation with what people call a latching relay, which makes it harder to google things. What ABB calls a latching relay (E290) operates on an impulse of control current, latches mechanically for continuous duty, and alternates on and off. The minimum impulse is 50ms so your opener should work. They have a good variety of control voltages but contacts only up to 32A at 230VAC.

https://library.e.abb.com/public/940...0_EN_Final.pdf
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