Exit button on Raspberry PI

[stanwin00]

Hi, I am trying to figure out how to wire a door exit button to my Pi Access system and I do know the code to utilise the GPIOs to activate the switch.

My questions are as follows:

1) Will it matter if my push exit button says 10A 250V? If no - does this mean I can use ANY type of button?
2) Will it be better if i Wire the push button to the NO part of the relay I already have attached to my pi? The relay controls the EM lock which is wired to NC of the relay and a 12 V power supply.

Appreciate any guidance here.

Thank you.

[Burngate]

Hi, I am trying to figure out how to wire a door exit button to my Pi Access system and I do know the code to utilise the GPIOs to activate the switch.

Not sure what you mean - a switch is an input device. It doesn't need "activating" - it just works

1) Will it matter if my push exit button says 10A 250V? If no - does this mean I can use ANY type of button?

If "10A 250V" is written on the switch, it means "Don't use this switch to control more than 10A or more than 250V"
It doesn't say anything about what you could use instead.

2) Will it be better if i Wire the push button to the NO part of the relay I already have attached to my pi? The relay controls the EM lock which is wired to NC of the relay and a 12 V power supply.

Surely you don't want to connect the switch (an input device) to any part of the relay (an output device)

Draw a diagram of what you want to achieve, and post it here.

[stanwin00]

Thank you. That explains and answers my questions. I will just proceed to wire the switch to one of the gpios then cheers.

[Imperf3kt]

Note that 10A 250v sounds like an AC rating, it won't be the same for DC.