Quantcast
Viewing all articles
Browse latest Browse all 4861

Advanced users • Rotary Encoders, Interrupts, MCP23S17

Hey all,

I have this puzzle that I just can't seem to solve. I am adding some rotary encoders to my Pi and they are connected to an MCP23S17 GPIO expander, whose INTA and INTB are connected to GPIO2 and GPIO3 of my Pi.

I see that there's dtoverlays for the MCP23S17 however when I load them, i don't see anything related to it under `cat /proc/interrupts`

And even once it is all initialised correctly, how do I access these interrupts in the user space, e.g. a python program?

Statistics: Posted by botoxparty — Tue May 28, 2024 8:30 pm



Viewing all articles
Browse latest Browse all 4861

Trending Articles