How to control a h bridge with only one switch

Thread Starter

cornishwalker

Joined Feb 5, 2018
5
Hi
I want to control a motor to turn clockwise or anti clockwise with one press of a button I have a h bridge and a sensing switch which goes high at the end of the travel but drops as soon as movement occurs going high to a different switch at the end of the opposite travel can anyone give me an idea of a control circuit I was looking at 2 555 timers as latches thanks in advance
 

Thread Starter

cornishwalker

Joined Feb 5, 2018
5
Yes, I was planning to use a 555 latch for each side of the bridge. It's how to control it with just one button press that is confusing me. I was trying to work out how to switch the feed from one trigger pin on one 555 to the other
 

AnalogKid

Joined Aug 1, 2013
11,038
To be much more clear:

Press and release button.
Motor runs in one direction.
Traveler hits first limit switch.
Motor stops and sits.
Press and release same button.
Motor runs in the other direction.
Traveler hits second limit switch.
Motor stops and sits.

Yes/no?

If yes, this can be done with one DPDT impulse relay. No Arduino, no PIC, no AVR, no 555, and no PDP-8.

ak
 

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Thread Starter

cornishwalker

Joined Feb 5, 2018
5
To be much more clear:

Press and release button.
Motor runs in one direction.
Traveler hits first limit switch.
Motor stops and sits.
Press and release same button.
Motor runs in the other direction.
Traveler hits second limit switch.
Motor stops and sits.

Yes/no?

If yes, this can be done with one DPDT impulse relay. No Arduino, no PIC, no AVR, no 555, and no PDP-8.

ak
That's correct will take a look at PDF later
 
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