I have a pneumatic chuck that needs a pulse that lasts a bit to open and close. Currently I have 2 foot pedals and each works in one direction. I would like to have just one pedal and a relay circuit to make it a flip-flop, but I only know how to do it digitaly.
When the pedal is pressed first time the signal should go in one direction as long as the pedal is pressed. When it's released the direction should change, and by pressing it again it should start again.
____ ____ ____
FOOTSW ____| |______________| |____________| |_______
____
SOLN-O ________________________| |_________________________
____ ____
SOLN-C ____| |________________________________| |_______
Basicaly to get both a push button and a latching switch with the same pedal that in hadrware only has push buttons.
Is it possible to have this kind of functionality with just relays, and how?
I can solve the problem in general, I would just like to know if there's a solution to do it without other elements like timers, capacitors and microcontrollers.