[Phil Barrett] designed a new CNC controller breakout board called the PicoCNC which uses the Raspberry Pi Pico RP2040 module and grblHAL. It packs a bunch of features typical of these controllers ...

The reason phil-barret is important, is that, as Brookwood Design, phil-barrett has already sold hundreds (Update: almost 600, see comment below) of a similar, well-received, CNC breakout board (right ...