2 layers40 × 29 mm

Reverse battery protection
voltlog/reverse-battery-protection
More info about this project in Voltlog #353.
19 parts6GPL-3.0
Boards in 2 GitHub repositories, designed in KiCad, that use the ATTINY48-MMU by Microchip Technology (-40℃~+85℃ 1.8V~5.5V 12MHz 24 256Byte 4KB 64Byte 8 Bit AVR Built-in FLASH QFN-28-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHS). See how each wires it, with its parts, size, README and files; the ATTINY48-MMU’s symbol, footprint and pinout are on its own page.

voltlog/reverse-battery-protection
More info about this project in Voltlog #353.
xenbedded/pixel-c-support
Support hardware and software for running custom code on the Google Pixel C.