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ESP32
ESP32 based Wifi Person Detection - Motion detection system based on Wi-Fi spectre analysis (CSI), with native Home Assistant integration via ESPHome.
Updated January 29 2026
https://hackaday.com/2026/01/28/make-your-own-esp32-based-person-sensor-no-special-hardware-needed/
https://github.com/francescopace/espectre
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