Till

As I never worked with rp2040 up to now I just quickly setup the rp2040 toolchain via https://github.com/raspberrypi/pico-setup-windows out of interest and visual studio code is familiar to me. I...

@lucasromeiro pin 25 and 16 have been exchanged (=swapped) as you suggested above and there is not much that can be done wrong, I think. Uploading worked as well but...

I now understood the simple meaning of ITSY, XIAO, PICO, etc. in the pins.h The ItsyBitsy RP2040 from adafruit is the only exception from the gpio16 for the RGB... they...

So, the Pin config ist correct and is unlikely an issue of the firmware. Can you post a full picture of the board?

You have a standard rp2040 tiny and the gpio16 is correct. Power is directly coming from 3.3V rail and no gpio17 is needed. Very unlikely a firmware issue in my...

I do not know, what changes were done with different releases. But if am older one works I would guess the board autodetection is confused. But you seem to have...

There is no clear change history for the commits to trace this back to a code change. The chip version should not affect this. Looks also more like lot number...

I do not know, what changes were done with different releases. But if am older one works I would guess the board autodetection is confused. But you seem to have...

I think, I found the issue with the TINY. @lucasromeiro  Please measure resistance between GPIO25 and GND. For the TINY it should be connected to GND according to the...

@lucasromeiro just to be clear on what you measured - you found 540 Ohm between GPIO25 and GND as shown in this figure?  Please check directly at the RP2040...