|Jan 24, 2013, 08:09 AM|
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?
|Jan 25, 2013, 01:52 AM|
|Jan 26, 2013, 12:53 AM|
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
|Jan 26, 2013, 06:12 AM|
Joined Mar 2006
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.
|Jan 26, 2013, 02:51 PM|
United States, ID
Joined Sep 2011
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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