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Snoop Unto Them — As They Snoop Unto Us

An ESP32-S3 wireless signal detection board, assembled and soldered by hand, running the open-source OUI-SPY firmware.

Technical Overview

What It Actually Does

OUI-SPY is a unified firmware with four selectable detection modes, all passive — nothing is transmitted or exploited.

Foxhunter

Tracks a specific device's MAC address with proximity beeping based on signal strength — built for directional antenna work.

Flock-You

BLE fingerprint detection for certain commercial surveillance camera systems, with GPS wardriving and session export.

Sky-Spy

Identifies nearby drones via RemoteID broadcasts, with real-time GPS coordinate extraction and multi-drone tracking.

UniPwn

Authorized security research mode for BLE command injection testing on Unitree robots.

Also includes MAC randomization for privacy, web-based configuration, and audio alerts.

3D Print Downloads

All The 3D Models you will need to house your components!

Hover for enclosure downloads ↓

Credit

Firmware By Lukeswitz. Board design by ColonelPanic). Battery integration, enclosure design, and assembly are my own work.

Build Photos

The Assembly

Custom RF detection build photo 1 Custom RF detection build photo 2 Custom RF detection build photo 3 Custom RF detection build photo 4 Custom RF detection build photo 5 Custom RF detection build photo 6 Custom RF detection build photo 7 Custom RF detection build photo 8 Custom RF detection build photo 9