Tim
I have not built this up as yet.? You need to ask Oliver which board that he used.? If you look at the Pix that Oliver attached and count the pins it is a 38 pin ESP32 Development board [I think Wroom but cannot decipher the last few characters on the part].? The link that Oliver provided at Amazon was for a 30 pin board.? Oliver's board has a jack for a Wi-Fi antenna , but that is not used in the test stand.
I am going to make a schematic shortly, so I can identify the exact pins that are used and be sure that the extra I/O pins on the 38 pin versions are unused.? I will post it here for review unless Oliver has one already available.? I will also try to show how the Expansion Board(s) fit with the Development board(s) when plugged into an Expansion Board.
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Just as an aside, I am working on a special application of a clock operated switch using the ESP32 as a real time clock attached to my WiFi network for NPT time reference.?
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Dick K9IVB
