Anybody knows the pin numbers of the I2C bus on the NodeMCU-32S (probably identical to Espressiv Dev Board, but not sure)?
I expected
SCL on GPIO22 and
SCK on GPIO21
but scan does not find any devices I2C connected to these pins. This does work with the WiPy 2.0 (pins are different).
I2C pins on NodeMCU-32S
Re: I2C pins on NodeMCU-32S
Did you forget to add pullup resistors?
Re: I2C pins on NodeMCU-32S
No - I'd specified the pins incorrectly. Now it's working.
Re: I2C pins on NodeMCU-32S
Hi! ttmetro
Hi!
I have the same problem with my ESP32 with I2C.
How do You get it working?
Hi!
I have the same problem with my ESP32 with I2C.
How do You get it working?
Re: I2C pins on NodeMCU-32S
pls ignore my post, I do not know how to delete my post.
Last edited by wr300000 on Thu May 24, 2018 10:49 pm, edited 1 time in total.
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Re: I2C pins on NodeMCU-32S
For ESP32 boards this is the only instructions that seem to work for ESP32 firmware and flashing it using windows compouter istead of Linux computer
- pythoncoder
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Re: I2C pins on NodeMCU-32S
Did you mean this forum post?OutoftheBOTS_ wrote: ↑Sat Jan 20, 2018 8:17 amFor ESP32 boards this is the only instructions that seem to work for ESP32 firmware and flashing it using windows compouter istead of Linux computer
Peter Hinch
Index to my micropython libraries.
Index to my micropython libraries.
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Re: I2C pins on NodeMCU-32S
@pythoncoder Yes. I played around with lots of instructions and never managed to get ESP32 firmware to compile on windows machine and ended up getting old laptop and installing linux just to be able to compile ESP32 Micropython firmware. Laboris new added instructions for windows build seem to be the first that I have found to work.
I have just noticed that I forgot to add the link to it ha ha ha. Thanks for adding it
I have just noticed that I forgot to add the link to it ha ha ha. Thanks for adding it