2 layers85 × 23 mm

Sensorstick
MayNiklas/sensorstick
a compact PCB designed to integrate a CO2 sensor into a USB stick form factor
8 parts2
Open-source boards designed in KiCad by MayNiklas on GitHub, from 2 repositories. A board’s address here is its repository’s there.

MayNiklas/sensorstick
a compact PCB designed to integrate a CO2 sensor into a USB stick form factor

MayNiklas/arduino-nano-ICSP-shield
A simple shield for the Arduino Nano, exposing a ICSP header for use as a ISP programmer.