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Help needed!MCP23017 Waveshare

Building Zynthian

wyleu February 22, 2021, 12:22pm 8

I think this thread might have discussed it . . . .

New build with 5 pin encoders and pre built mcp23017 board Hardware

[image] [image] Hi again all, Thanks for the comments from everyone. The post that wolfpaw pointed me to gave me everything I needed to get it working I think. I was using the new schematic as in the picture I posted above, but as I mentioned, I think that the switch pins are not labelled correctly for the config in the software. on my encoders, I have the GND,SW,DT and CLK connected - I found that you can leave the +5v off. BUT, I have my switches connected to Gpb0, Gpb3, Gpa0 and Gpa3 on …

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