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Pcf8575 wiring #241

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xFears opened this issue Jul 5, 2023 · 0 comments
Open

Pcf8575 wiring #241

xFears opened this issue Jul 5, 2023 · 0 comments

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@xFears
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xFears commented Jul 5, 2023

Hi, I am trying to connect Pcf8575 gpio expander to the board and I've ran into some problems, wiring Pcf8575 module to esp32 pin 21 and 22 works fine sometimes but module doesn't receive desired address it's either 0x26 or 0x27, it changes during restart. I've set pcf to use default address which should be 0x25, sometimes it just doesn't even work. Any ideas?
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@xFears