2 layers56.1 × 35.8 mm

Lensmount v1
Jana-Marie/EF-S-Adapter
Hard- and Firmware to control different EF and EF-S lenses
35 parts139MIT
KiCad boards from 3 GitHub repositories tagged “stm32f042”, the most starred first; open any of them in PCBKit.

Jana-Marie/EF-S-Adapter
Hard- and Firmware to control different EF and EF-S lenses


Chicken-Fried/STM32-NanoCortex
Ultra-compact USB-C development board powered by STM32F042 (ARM Cortex-M0) with native DFU, ceramic-only LDO power stage & CaveRover branding.