[mmoskal]

nit: MCU is Micro Controller Unit, so for example rp2040 itself. What you mean is "board".

Completely right on the power consumption though. The NRF52 is also quite good at limiting power consumption while it's running and automatically disabling peripherals while not used (you typically do that with disabling clocks on other chips). It also has the sanest hardware registers I've seen (looks like they were actually designed with software in mind).

[levpopov]

Yes, thanks for the correction! In DIY keyboard community a microcontroller breakout board is often referred to as MCU which makes things confusing.