The other day I also developed a RGB-RGBW converter using a rp2040; claude did most of the assembly, so instead of taking a couple of days, it took a couple of hours.
I don't prefer no code; my point is software is a barrier on embedded systems, and if I - someone who can actually program in c/c++, python and assembly, see huge benefits in using LLMs, for someone at an entry level it is a life changer.
if youre using a pico, you can use PIO to have a bit more power. (I use it to control stepper motors with a smooth accel/decel ramp. Its doable with RMT, but not as easy.