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Discover the origins of AirGradient, which began as a volunteer project in Northern Thailand during the harsh "burning season" of 2019. Learn how this effort evolved into a company focused on providing open source air quality hardware, measuring critical metrics like PM 2.5 and CO2 to safeguard classrooms
Watch this episode on YouTube https://hasspodcast.io/ha206
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Chapters 00:00 Welcome 01:04 Meet Achim: From Siemens to Thailand and a Wildfire Crisis 03:20 Burning Season 2019: The School That Sparked AirGradient 07:50 DIY to Open Hardware: Arduino, ESP32, PM2.5 + CO2, and Dashboards 12:24 Values: Repairability, Ownership, and CC BY‑SA Licensing 16:40 Global Takeoff: Hacker News, Jeff Geerling, and the Kit Era 20:16 ESPHome vs Native: Building the Official Home Assistant Integration 32:26 Works with Home Assistant Platinum: Local‑First and Privacy by Default 36:40 Open Culture, Community, and Academia: Why Sharing Pays Back 41:45 UNICEF Laos: ML Air‑Quality Forecasts + Open Map Integration 44:55 Roadmap: Larger Displays, Portable Monitors, and More Pollutants 46:27 Safeguarding the Mission: Foundation Plan (Switzerland) 49:45 Achim’s Home Assistant Setup: Z‑Wave, ESPHome, Geofencing 56:16 Real‑World Use Cases: Factories, Schools, and Ventilation Control 01:01:58 Accuracy Matters: Calibration, Pitfalls, and Transparent Limits 01:05:19 Wrap‑Up and Where to Buy
This episode was made possible thanks to our sponsors Home Assistant Cloud by Nabu Casa Easily connect to Google and Amazon voice assistants for a small monthly fee that also supports the Home Assistant project. Configuration is via the User Interface so no fiddling with router settings, dynamic DNS, or YAML.
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Hosts Phil Hawthorne Website Smart Home Products Twitter: @philhawthorne Bluesky: @philhawthorne.com Buy Phil a Coffee
Rohan Karamandi Website Smart Home Products Twitter: @rohank9 Buy Rohan a Coffee
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