Closed
Description
keypad already has a Warning that the RP2350 Erratum E-9 could cause issues, but it doesn't explain how to get around the issues. I just wrote https://learn.adafruit.com/key-pad-matrix-scanning-in-circuitpython/raspberry-pi-rp2350-erratum-workarounds. Link to that or just copy it, more or less, into keypad