Show HN: ESPectre – Motion detection based on Wi-Fi spectre analysis
francescopace Monday, November 17, 2025
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.
Summary
The article discusses Espectre, an open-source tool for exploiting Spectre vulnerabilities in computer systems. It provides insights into the tool's capabilities, the Spectre attack, and the importance of understanding and mitigating such vulnerabilities in modern computing environments.
89
15
Summary
github.com