# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**1 device listed.**

## Oui-Spy

ESP32-S3 based multi-mode BLE detection and security research tool with integrated piezo buzzer, MMCX antenna connector, and seven swappable firmware modes for surveillance detection, drone tracking, and RF direction finding.

[Details](https://openhardware.directory/devices/oui-spy) | [Markdown](https://openhardware.directory/devices/oui-spy/md)