{
  "id": 14636555,
  "title": "You, too, can make this ESP32 air quality detector that works with Home Assistant",
  "url": "https://urgent.news/2026/10/15/you-too-can-make-this-esp32-air-quality-detector-that-works-with-home",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-15T07:02:21.000Z",
  "source": {
    "name": "XDA Developers",
    "slug": "xda-developers",
    "url": "https://www.xda-developers.com/you-too-can-make-this-esp32-air-quality-detector-that-works-with-home-assistant/"
  },
  "original_language": "en",
  "account": "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.",
  "summary": "It can last a long time on one charge.",
  "key_points": [
    "DIY enthusiast creates ESP32-based air quality detector",
    "Device measures CO2, temperature, humidity in deep sleep mode",
    "Integrates with Home Assistant via MQTT protocol"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}