Show HN: ESPectre – Motion Detection Using Wi-Fi and Math https://ift.tt/DQ4TKJa

Show HN: ESPectre – Motion Detection Using Wi-Fi and Math 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. https://ift.tt/y5dIbOC November 17, 2025 at 08:10PM