Build Gallery
Tap any image to open full size
Improved upon my previous home automation sensor designs with more accurate sensors & better thermal separation.
This design increases the separation between MCU & sensor(s) substantially, as well as blocking airflow between the two chambers. The temperature readings are the same with the sensors in the case as they are with the sensors uncased.
The channel for the wires is designed for 28AWG silicone wire with an outer diameter of ~1.2mm. The corresponding tongue in the lid fills the empty height in the channel to prevent airflow & also holds the lid in place more firmly.
By this point I had also switched from Adafruit IO to a locally hosted Home Assistant server, using ESPHome to push OTA firmware updates to the sensors without needing to physically access them.
Tap any image to open full size