On 06/20/2015 09:02 AM, John McKenzie wrote: > > Guys, thanks for the various code examples for GPIO and the warning > about debouncing issues. I am still considering going the route of more > complex wiring and doing it a more traditional GPIO way.
You can wire up the button without a little breadboard or circuit board using this general diagram: https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/robot/buttons_and_switches/ Just solder the resistors to the wires themselves, and keep them close to the pi to keep them clean. Then you you just have to route one wire per switch, with one common wire hitting the other side of each switch. Probably you will want to use the pull-up version where the switch pulls the signal down to ground. You may want to use a header to plug into the rpi. But besides that should just be a matter of routing wires. But on the original track, you might want to ask on the kade forums if there's any way to interact with kade and get events besides HID emulation. For example, maybe you could communicate with it over a virtual serial port. Or some other protocol so you don't have to worry about ttys and Linux kernel HID handling for your program, especially in a headless environment. Using HID emulation makes sense in a MAME arcade environment but not for a headless raspberry pi application. -- https://mail.python.org/mailman/listinfo/python-list
