Marauder Keychain

Aug 2026 - Aug 2026

Marauder Keychain turns a spare ESP32 into a pocket WiFi/BLE security tool with no screen, SD card, or laptop needed: just USB power and a phone browser. I built a full web control panel into the ESP32 Marauder firmware, routing all 71 commands through the same dispatcher the serial CLI uses. The keychain itself is a custom two-piece 3D-printed case, CAD-modeled to the exact board outline with a keyring loop molded in.