µctrl Raspberryπ pico & arduino

[EdS2]

The RP Pico might be a bit better than that: the SLEEP mode is not quite as deep as DORMANT mode, and even with the hello_dormant example, it looks to me as if the RAMs are not powered down, and neither are the PLLs. So, I think there might be scope for further reduced power - but the Pico board has more on it than the RP2040 chip, so even with the chip at lowest dissipation, it might not constitute an ultra-low-power solution.