2 layers36 × 25 mm

Mgm210l sensor
temonuv/dormouse
🐭 Dormouse — a coin-cell (CR2032) Zigbee 3.0 temperature + humidity sensor on the Silicon Labs MGM210L (EFR32MG21). Firmware + KiCad hardware + Home Assistant integration.
9 parts2MIT
KiCad boards from 3 GitHub repositories tagged “sht40”, the most starred first; open any of them in PCBKit.

temonuv/dormouse
🐭 Dormouse — a coin-cell (CR2032) Zigbee 3.0 temperature + humidity sensor on the Silicon Labs MGM210L (EFR32MG21). Firmware + KiCad hardware + Home Assistant integration.

Alexden28/esp32c3-sensor-node-pcb
2-layer ESP32-C3 + SHT40 USB-C sensor node in KiCad 10, generated from Python, autorouted, ERC/DRC clean, with Gerbers/BOM/CPL/STEP

ijafarov7/stm32-klima-messgeraet
Temperatur- und Feuchte-Messgerät mit STM32F103, SHT40 und OLED (C/HAL, KiCad)