Case for SCD40 and ESP32-C3

Update 12.06.2025: design update for better lid snap and more guideline-compatible sensor slot

Small case that you can simply print (case and lid).

The case is made to store a:

• SCD40 or SCD41 board (no pin header, Aliexpress example)
• ESP32-C3 supermini (no pin header, Aliexpress example)

The lid and the case block in place the ESP32 and the SCD4x sensor.

My print settings are (for Prusa MK4S):

• 0.2 layer
• infill 10-15% (no big change in time and structure)
• no brim and no support
• rotate the lid by 180° after import

On my page you can find the code for ESPHome, to send the data to Home Assistant.