Getting the RP2040 and all the support components, which include an 8MB QSPI Flash chip, a 3V3 LDO, a handful of 0201 passives, and even a pair of pushbuttons, required quite a lot of design tweaking.

Raspberry Pi’s first foray into the world of microcontrollers, the RP2040, was a very interesting ... and twice as much QSPI flash at 4 MB. And those sweet, sweet PIOs? Now it has 12 instead ...