You are reading a single comment by @jeffmer and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@jeffmer
Thanks, that is interesting, I will try it on the boards I have. Yes, I think the main difference is the 3.3V regulator. The full schematic for the nice!nano can be found here https://nicekeyboards.com/docs/nice-nano/pinout-schematic. There are two versions. I think the AliExpress board is like V1 except that the resistor should be 2M not 5K. I have the V2 board which has a different circuit for the external 3.3V.
Can you post a photo of the location of the 5K resistor.