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Old Jan 24, 2013, 07:09 AM
No flying at the Control Tower
karikamiya's Avatar
Canada, NT, Inuvik
Joined Jun 2010
132 Posts
Help!
Looking for automatic switch

I am looking for a switch that i can control physically or electrically, similar to a motorized pot.

ie i can flip the switch or the controller can flip the switch

anyone heard of such a device?
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Old Jan 24, 2013, 02:21 PM
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whitecrest's Avatar
Orleans, MA
Joined Feb 2007
2,077 Posts
A relay could be wired to operate manually or via circuit control.
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Old Jan 24, 2013, 02:43 PM
Registered User
United States, ID
Joined Sep 2011
422 Posts
Here you go, the "automatic switch"...
The Most Useless Machine EVER! (0 min 19 sec)
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Last edited by jakestew; Jan 24, 2013 at 02:54 PM.
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Old Jan 25, 2013, 12:52 AM
No flying at the Control Tower
karikamiya's Avatar
Canada, NT, Inuvik
Joined Jun 2010
132 Posts
Quote:
Originally Posted by whitecrest View Post
A relay could be wired to operate manually or via circuit control.
I thought about it, but i'd want the switch to be representative of the current position of the relay
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Old Jan 25, 2013, 05:31 AM
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Scottish Borders
Joined Mar 2006
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A wee bit more information might help?

http://www.serelays.com/products.php?t=388J
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Old Jan 25, 2013, 11:57 AM
RC beginner
New York
Joined Oct 2008
6,054 Posts
Quote:
Originally Posted by jakestew View Post
Here you go, the "automatic switch"...
http://www.youtube.com/watch?v=Z86V_ICUCD4
that is the funniest video ive ever seen. also the first time i actually appreciated a music track. thanks jake.
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Old Jan 25, 2013, 11:53 PM
No flying at the Control Tower
karikamiya's Avatar
Canada, NT, Inuvik
Joined Jun 2010
132 Posts
Imagine, when you turn on a device all the toggle switches automatically switch themselves to off, even if the switch was on

thats what i want, a switch that can move itself
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Old Jan 26, 2013, 05:12 AM
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Scottish Borders
Joined Mar 2006
574 Posts
Latching relays are available with single or double coils that can be energised by a short pulse and the contacts will remain in that state until a new pulse reverses the magnetic path.
Single coil relays require the current flow to be in the reverse direction in the coil to toggle.
Double coil relays require the current to flow in the same direction but in the coil associated with the contact requirement.

When switched ON a simple microcontroller such as a Picaxe should be able to reset a number of relays to the off position and accept input from switches to energise relays to required positions where they would remain after power down.

Heavier Double Coil relays could be controlled by a Picaxe using a single transistor driver for each coil.

Because of it's low current requirement the relay in the link below should be able to be controlled directly from a Picaxe.
The link also shows the level of information that can help to give a usable answer.

Dave

http://www.electro-tech-online.com/g...ing-relay.html
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Old Jan 26, 2013, 01:51 PM
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United States, ID
Joined Sep 2011
422 Posts
I think he actually wants to mechanically move a switch to represent what the uC is doing.

It is a bad idea though. There's many problems from a design standpoint. Unless it's a design requirement (device for the blind maybe?) you should abandon the idea. There's a reason such switches aren't made. Nobody want's to fight the uC that's supposed to be doing their bidding. There's way better ways to do things than have your electronics mechanically fight with you.
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