ESPectre – Motion detection based on Wi-Fi spectre analysis
Hi everyone, I'm the author of ESPectre. This is an open-source (GPLv3) project that uses Wi-Fi signal analysis to detect motion using CSI data, and it has already garnered almost 2,000 stars in two weeks. Key technical details: - The system does NOT use Machine Learning, it relies purely on Math. — Runs in real-time on a super affordable chip like the ESP32. - It integrates seamlessly with Home Assistant via MQTT.
In plain words
ESPectre is an open-source motion detection system that analyzes Wi-Fi signals using CSI data to identify movement without machine learning, relying instead on mathematical analysis. It runs in real-time on affordable microcontrollers like the ESP32 and integrates with Home Assistant via MQTT. The project is designed for users seeking a cost-effective, privacy-conscious alternative to traditional motion sensors for home automation.
written from the facts on this page · September 2026
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