Hello people, I'm trying to control a rotary encoder via a MCP23017 chip. I just replicated this example but it doesn't work, I guess it's due the I2C pins are different in my board. Could someone please tell me what pins should I use? Specs says 20 and 21 but those are chip pins not board, right? Thanks in advance!
Edit: nvm i found it, it's even printed in the PCB :-*