ESPectre turns a cheap ESP32 board into a motion detector that reads Wi-Fi signal changes rather than using cameras or microphones. It runs as a lightweight firmware and integrates with Home Assistant through ESPHome or MQTT. The system samples CSI (channel state information) from nearby Wi-Fi traffic and applies signal analysis to detect movement through walls. No AI models are involved — it...
How to Detect Motion Through Walls with ESPectre
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