You, too, can make this ESP32 air quality detector that works with Home Assistant
It can last a long time on one charge.
In an attempt to save money and avoid proprietary services, a DIY enthusiast has crafted a compact air quality detector using an ESP32 microcontroller. The gadget, which can be found on the ESP32 subreddit, is controlled by MrNiceThings, who admits the ESP-WROOM-32 module they utilized was somewhat excessive, but it was lying around and needed a purpose.
The device is designed to sit on a shelf and remain dormant, measuring CO2 levels, temperature, and humidity every few minutes while in deep sleep mode. Once it wakes up, it refreshes a 4.2-inch e-paper display with the collected data and then returns to its power-saving state. The device can be easily integrated into Home Assistant or any other platform utilizing MQTT, but it can also function independently as a standalone display.
Though MrNiceThings intends to create a 3D enclosure design, current DIY enthusiasts can begin their own project by following the project's GitHub page.
Written by urgent.news from XDA Developers's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
