In the electronics world, a little one-inch square board with castellated edges allows a lot of circuitry to be easily added in a small surface area. You can grab a prepopulated module, throw it onto
RP2040 Stamp Round Carrier - RP2040 microcontroller board - 16 NeoPixels LEDs - PiMoroni SP027 Botland - Robotic Shop
RP2040 Stamp Round Carrier by Solder Party
Stamp Archives - Maker News
Timelapse Build of RP2040 QT Trinkey Prototypes
Round Carrier
A hand-solderable SMD/TH module w/ RP2040 MCU+8MB FLASH, LDO, LiPo charger, reset btn, and Neopixel. Breaks out all GPIO+USB+SWD+BOOTSEL+RST
RP2040 Stamp
RP2040 Doom: Doom II Demo on a RP2040 Stamp
RP2040 Stamp Handheld Console (Flux Project) by Solder Party
GitHub - solderparty/rp2040_stamp_hw
Hackster.io on LinkedIn: SB Components' Micro RP2040 Shrinks the Raspberry Pi Pico Into a Compact…
RP2040 Stamp Handheld Console (Flux Project) by Solder Party
Pimoroni Tiny 2040 - Make: DIY Projects and Ideas for Makers