Gpio Expand board recomendation

#1

HI,

I would like to add some gpio buttons to my rasp. I have read in the forum that pisound does not use all the gpio pins… so I could use the free pins for my buttons and my addons.

My problem now is that pisound is physical connected to all the 40 raspberry pins… so I dont know how can I connect to them. I have no experience with the welder.

So, do you recommend me an expansion board or something to use the free pins in an easy weay

Thanks!!

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#2

Easiest way to add more controls would be by using DIN-5 or USB MIDI controllers.

A bit more difficult way would be to use I²C communication to hook up something based on Arduino or some I²C GPIO expander chips.

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