I cannot for the life of me figure out why mmjoy2 is not showing button presses from the shift register hooked up to my ProMicro.
Hardware: ProMicro clone This shift register board with 3x 74H165 shift registers.
Shfit register board is connected to ProMicro as follows: MISO - D2 CS - D3 5V - VCC GND - GND Edit: SCK to SCK [D15]
I have the ProMicro set up with mmjoy2 (config attached) and have even verified that button presses work using the button matrix settings by setting two pins as a single row/column and shorting the two pins.
None of the hardware button indicators light up when I short the switch pins on the shift register to ground. I have tried several different MISO/CS pins with the same result. I even swapped with the other shift register board with the same result.
Other notes: if I remove the plug from the shift register board, the hardware button indicators kind of spaz out, flashing intermittently.
