I just checked the prices for my country and I’m surprised how cheap this is. I’m 90% sure I’m buying one just to play around with.

and the datasheet is amazing https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.p...

there is an issue that language models have seen enormous amounts of rp2040 code and docs, and it they get properly confused a lot, so you should just pdf print relevant pages and use them in-context.