electronics help required

JohnFol · 4th December 2007, 08:42

I have a basic 12v circuit that has 2 buttons, one for on and one for off. The buttons are sort that make the circuit when pressed and break when released, so a bit like a door bell.

I was thinking about changing the design so I have just 1 button. When initially pressed it acts as the on button and when pressed again it acts like the off button. I'm sure there is either a simple "use this" answer, or I have to provide a lot more detail

Either way, all advice much appreciated.

JohnDotCom · 4th December 2007, 09:21

Just a simple Make/Break Switch should cover that.
One push for make, next push for break.
Plenty should fill the Requirement, have a look at Maplins.
I take it it is for fairly low Current?
Or is it on a car or such like?

http://www.maplin.co.uk/Search.aspx?...source=15&SD=Y

JohnFol · 4th December 2007, 09:27

I see the logic, however both are "press to make, release to break". To extend the doorbell analogy, 1st press and release rings bell A, 2nd press and release rings doorbell B, then back to A and so on.

4th December 2007, 08:42	#1
JohnFol Gets stuck in 75 Conn SE - XVWY* Join Date: Nov 2006 Location: Reading Posts: 564 Thanks: 0 Thanked 2 Times in 2 Posts	electronics help required I have a basic 12v circuit that has 2 buttons, one for on and one for off. The buttons are sort that make the circuit when pressed and break when released, so a bit like a door bell. I was thinking about changing the design so I have just 1 button. When initially pressed it acts as the on button and when pressed again it acts like the off button. I'm sure there is either a simple "use this" answer, or I have to provide a lot more detail Either way, all advice much appreciated.

4th December 2007, 09:21	#2
JohnDotCom * Rover 75 FaceLift Tourer CDTi 170BHP Auto ConnSE 2005 Model Starlight Silver Join Date: Nov 2006 Location: Abergele Posts: 28,735 Thanks: 0 Thanked 6 Times in 5 Posts	Just a simple Make/Break Switch should cover that. One push for make, next push for break. Plenty should fill the Requirement, have a look at Maplins. I take it it is for fairly low Current? Or is it on a car or such like? http://www.maplin.co.uk/Search.aspx?...source=15&SD=Y

4th December 2007, 09:27	#3
JohnFol Gets stuck in 75 Conn SE - XVWY* Join Date: Nov 2006 Location: Reading Posts: 564 Thanks: 0 Thanked 2 Times in 2 Posts	I see the logic, however both are "press to make, release to break". To extend the doorbell analogy, 1st press and release rings bell A, 2nd press and release rings doorbell B, then back to A and so on.