IKEA hack https://style.oversubstance.net/2021/08/diy-use-an-ikea-vindriktning-air-quality-sensor-in-home-assistant-with-esphome/ https://style.oversubstance.n

IKEA hack https://style.oversubstance.net/2021/08/diy-use-an-ikea-vindriktning-air-quality-sensor-in-home-assistant-with-esphome/ https://style.oversubstance.net/2021/08/diy-use-an-ikea-vind... and of course previously on HN, airgradient DIY https://news.ycombinator.com/item?id=27124671 https://news.ycombinator.com/item?id=27124671 The more the better. Maybe one day built into every smoke detector. Maybe in a decade built into your phone. Another decade in your watch.