CircuitSetup
commented
2 years ago Hi Daniel,
Thanks for purchasing!
Anything that is not being used as an SPI port is available. So if just the main board, not 0, 5, 18, 19, 23. I wouldn't use 12 either.
Let me know if you have any other questions!
Best, John
On Thu, Oct 7, 2021, 6:38 PM Daniel Lang @.***> wrote:
Hi, I have a smart meter which uses an optical interface to send the power mesurments (SML language). For the optical sensor I need a free input port on the ESP32. Is there anything free for that usecase?
Thank you 🙂
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danielang
Hi, I have a smart meter which uses an optical interface to send the power mesurments (SML language). For the optical sensor I need a free input port on the ESP32. Is there anything free for that usecase?
Thank you 🙂