GPIO to motherboard Buttons

[pedro_javierf]

Hello everybody,

So, at the moment, I'm not really sure how GPIO works (I'm reading the info, my rasp has 40 pins B+) And I would like to do something like this:

As far as I'm concerned, using GPIO I could detect electrical ON/OFF status (I mean, if a button was pressed, but whitout sending any information). What I would like to do is to solder a GPIO pin from raspberry to a Calculator (or other electronic) motherboard buttons, so when te buttons are pressed a power signal is sent to the raspberry (the tool will detect ON/OFF)

Is this possible? (Yeah I'm 99% sure it is) How shall I do it? Using python (for example, because it's easier) how could I detect the button is pressed? Nowasays I only know how to turn on/off leds so...

Thanks in advance!
My best regards,

Pedro

[Laurens-wuyts]

Here you will find some extra info about how to connect and detect a button.
It has also some example code.

Laurens

[BMS Doug]

Keypads like this one are cheap and fairly easy to connect to the Pi (Note: this should not just be plugged directly into the GPIO pins, you would need to add resistors on a small circuit board).


Edit: I fogot to add the link, sorry).