sudomod

Hi,
so for my project i decided to use tactile switches for L and R buttons. My question here is, how do I wire them to the Pi ? I'm using the GPIO method and this board: Switches:

The ground you can wired to that pcb and the positive to the gpio

thank you, but how do I know which pins are ground and which are positive?

TilenB wrote: ↑

Tue May 09, 2017 2:37 am

thank you, but how do I know which pins are ground and which are positive?

it doesnt make a difference, just pick a side


if you watch wermy guide it in there





you can fast forward to around 11:35 of the video

switches are not directional. however, with tact switches, of the 4 pins, 2 are connected to each other. (and the other 2 are also connected to each other...) like so: pins 1 and 2 are connected, pins 3 and 4 are connected. when you click the switch, the 2 sides become connected to each other. as long as you make sure you connect one 'side' to gnd and the other to your GPIO pin, then it doesn't matter which way round it goes. I can't off the top of my head remember if it's the long side or the short side that's connected but with a meter or a light and battery circuit it should be easy to determine. (or just google it https://electronics.stackexchange.com/q ... breadboard )
if in doubt just use opposite corners

look at the picture you posted.
the two pins that are "on top" are connected as well as the two bottoms ones.

best regards

so one of two goes to gpio and one of two to ground?

I mean like
x----x->one to gpio
/
x----x->one to ground

Yes exactly