Twi-Hack — Compact Triple-Port HID Injection Dongle (RP2350A Powered)

Twi-Hack is a compact, open-source HID injection and prototyping dongle built for ethical hackers, penetration testers, educators, and makers. Powered by the Raspberry Pi RP2350A microcontroller, Twi-Hack delivers fast, responsive script execution in a small, display-free form factor, keeping the tool affordable, portable, and purpose-driven.

Unlike existing pocket HID tools that are limited by connectors or processing power, Twi-Hack is designed to be universally compatible out of the box. It features three onboard USB ports—USB-A (male), USB-C (male), and USB-A (female)—allowing it to plug directly into modern and legacy hosts without adapters. This makes Twi-Hack a true “grab-and-go” HID toolbox for labs, classrooms, and authorized security testing environments.

At its core, Twi-Hack uses the RP2350A dual-core MCU, offering faster execution and better multitasking than many RP2040-based devices. Scripts, payloads, and logs are stored locally on a microSD card, while plug-and-play USB HID support ensures compatibility with Windows, macOS, Linux, and Android (where permitted), with no drivers required.

Twi-Hack is fully open source. Firmware, libraries, schematics, example projects, and enclosure STL files will be published, enabling users to learn, audit, modify, and extend the platform responsibly. It keeps the hacker spirit alive—while pushing toward ethical, educational, and research-focused use.

⚠️ Ethical use only: Twi-Hack is intended strictly for legal, authorized testing, education, and research in controlled environments.

What Twi-Hack Can Do (Ethical & Educational Use Cases)

• Keystroke automation & macros — simulate user workflows or speed up test setups
• Authorized penetration testing — evaluate client-side input handling and controls
• Data collection for research — log events to microSD for offline analysis
• Rapid prototyping — integrate into automation rigs and hardware test benches
• HID experimentation — accessibility tools, custom layouts, proof-of-concept demos

Example Scriptable Tasks

• Automated login sequences for test accounts
• Controlled reboot or shutdown commands in lab systems
• Launching apps (e.g., camera) during authorized testing
• Copying logs to/from microSD storage
• Toggling peripherals for hardware experiments

Key Features

• Raspberry Pi RP2350A MCU — dual cores, faster execution, improved multitasking
• Triple-port design — USB-A (M), USB-C (M), USB-A (F) onboard
• MicroSD slot — store scripts, payloads, and logs locally
• Plug-and-play HID — works across major OS platforms without drivers
• Python-first scripting — beginner-friendly with room to grow
• Open source platform — firmware, schematics, libraries, and STL files
• Small & rugged — pocketable design; injection-molded ABS enclosure planned

• Host-powered — no battery, minimal size, simple operation

Technical Specifications

• MCU: Raspberry Pi RP2350A (dual ARM cores)
• USB Ports: USB-A (male), USB-C (male), USB-A (female)
• Storage: MicroSD slot (tested up to 512 GB)
• Scripting: Python (primary), HID libraries for other languages
• Power: USB host-powered (no internal battery)
• Status: Hardware prototype complete; firmware & tooling in active development