2 layers76.5 × 38 mm

STM32F401RE Dev board
PayloadCircuits/stm32f401re-evalboard
Two-layer STM32F401RE evaluation board (KiCad) — entry for the Mixed Traces PCB Design Competition
46 partsCERN-OHL-P-2.0
Open-source boards designed in KiCad by PayloadCircuits on GitHub, from 1 repository. A board’s address here is its repository’s there.

PayloadCircuits/stm32f401re-evalboard
Two-layer STM32F401RE evaluation board (KiCad) — entry for the Mixed Traces PCB Design Competition