CM3 dpad wiring
#3
Are you planning to use some specific buttons/switches?

All the digital buttons are wired directly to GPIO pins on the Pi CM3 (or Zero). There aren't any resistors or anything like that in-between. Furthermore, you can use any GPIO you want. You would just edit the /etc/modprobe.d/mk_arcade_joystick.conf file accordingly.

You could leave the current DPAD alone and wire up 4 tac switches deadbug style with wires running to open GPIO. The "v1.3" board has some open GPIO, but they're a bit small. If you're not using an add-on board, you could easily use GPIO 40-45 that are between the USB socket and the ABXY button area.

After investigating, I don't see a safe way to drill holes in the dpad area.
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Messages In This Thread
CM3 dpad wiring - by lazlow3 - 09-16-2020, 02:05 AM
RE: CM3 dpad wiring - by Flavor - 09-16-2020, 02:43 AM
RE: CM3 dpad wiring - by Flavor - 09-16-2020, 03:02 AM
RE: CM3 dpad wiring - by lazlow3 - 09-16-2020, 03:43 AM
RE: CM3 dpad wiring - by Flavor - 09-17-2020, 07:01 AM

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