brendansimon / micropython_experiments Goto Github PK

Shouldn't the index be key_code + col

self.key_char = self.keys[key_code + col]

Hey,
I'm trying to implement a key/button matrix on the esp8266/esp32 development board and came across your implementation. I realized I have to switch out pyb for machine and use time_sleep() for delay. I was also able to upload the main.py file to the esp8266. However, I'm getting the following error(s):

main_test(): start Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<string>", line 197, in <module> File "<string>", line 175, in main_test File "<string>", line 37, in __init__ File "<string>", line 63, in init File "<string>", line 63, in <listcomp> TypeError: can't convert str to int

I'd really appreciate any help/advice you might have here. Did you make your own button matrix? If yes, do you have a wiring diagram?

Again, any insights would be greatly appreciated!

It would be of a great help, if you could share some information on wiring.