Can you read what CPU stepping the RP2040 chips have, RP2-B0, RP2-B1 or RP2-B2 ?
That should be on the RP2040 chip itself -
![Image]()
Image borrowed from www.hackster.io
And what are you using to test the I2C0; Pico SDK, Arduino, MicroPython, and which version are you are using ?
That should be on the RP2040 chip itself -

Image borrowed from www.hackster.io
And what are you using to test the I2C0; Pico SDK, Arduino, MicroPython, and which version are you are using ?
Statistics: Posted by hippy — Sat Mar 09, 2024 1:04 am