I2C pins on NodeMCU-32S

[ttmetro]

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).

[deshipu]

Did you forget to add pullup resistors?

[ttmetro]

No - I'd specified the pins incorrectly. Now it's working.

[Almafa65]

Hi! ttmetro
Hi!
I have the same problem with my ESP32 with I2C.
How do You get it working?

[wr300000]

pls ignore my post, I do not know how to delete my post.

[OutoftheBOTS_]

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]

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

Did you mean this forum post?

[OutoftheBOTS_]

@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