4 layers80 × 50 mm

KiCad boards from 3 GitHub repositories tagged “fatfs”, the most starred first; open any of them in PCBKit.



An4s0/STM32-Industrial-Edge-Gateway
Embedded industrial edge gateway for environmental monitoring. Features Modbus RTU over RS485, real-time US EPA AQI computation, FatFs microSD CSV logging, and an embedded lwIP Ethernet web dashboard.