GoKawiilOpen-source ToothPaste V2 lets BLE devices send encrypted keystrokes over USB-HID
Developer Brisk4t has released ToothPaste V2, an open-source hardware project built on an ESP32-S3 and a cryptographic IC that lets a phone or computer transmit AES-256 encrypted keyboard and mouse commands to any USB-compatible device via Bluetooth Low Energy. The system uses WEB-BLE and requires no drivers, server, or cloud service, and devices must complete a pairing flow before exchanging data. Firmware can be flashed via esptool or similar tools, and the project is available on GitHub.