kenzo
Posts: 4
Joined: Sun Mar 09, 2014 4:17 pm

MCP23017 input expansion

Tue Apr 15, 2014 9:46 am

Hi All,
I created a driver based on Adafruit Retrogame which can expand Raspberry GPIO. Thus you can buid your own arcade station with 2 players using 6 (or more) buttons per player.

Hope you enjoy it !
See ya

https://github.com/vdownemail/Adafruit-Retrogame

I also attached circuit schematic in order to help people connecting MCP23017 with Raspberry

thak
Posts: 51
Joined: Wed Apr 10, 2013 6:22 pm

Re: MCP23017 input expansion

Wed Apr 16, 2014 8:10 am

Hi!

That's really great! Thanks for sharing.
Could you post a picture of your wiring ? (text file is good but i like to see in real if possible)

kenzo
Posts: 4
Joined: Sun Mar 09, 2014 4:17 pm

Re: MCP23017 input expansion

Wed Apr 16, 2014 8:31 am

arcade_controls_min.zip
This is the Fritzing file I used for the circuit etching
(23.91 KiB) Downloaded 131 times

kenzo
Posts: 4
Joined: Sun Mar 09, 2014 4:17 pm

Re: MCP23017 input expansion

Wed Apr 16, 2014 9:01 am

Be careful when cabling wires ! Do not connect to 5V power supply coming from Raspberry

these are some pictures of my work
circuit.jpg
Circuit
circuit.jpg (44.69 KiB) Viewed 1759 times
circuit-assembled.jpg
Circuit assembled
circuit-assembled.jpg (59.85 KiB) Viewed 1759 times
working-cabinet.JPG
Working cabinet
working-cabinet.JPG (47.49 KiB) Viewed 1759 times

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