HackStar: The Pocket-Sized USB Automation Tool
HackStar is a pocket-sized, RP2350-powered USB automation tool for keystroke injection and secure, driverless hardware hacking.
It might not be something most people think about often, but electronics hobbyists and professional engineers never know when a bit of hacking will come in handy. Whether you're testing the security of a network or troubleshooting a faulty device, having the right tools makes all the difference. Thankfully, there are more capable options available today than ever before — like the Flipper Zero, for example.
Still, if you want a true always-on-you multi-tool, even a compact device like the Flipper Zero might be too large. If that’s the spot you find yourself in, a new device called HackStar is worth a look. It is an open source, RP2350-based programmable USB control and automation device. The hardware is all packed into a tiny USB dongle that you can slip into your pocket and forget about until you need it.
HackStar functions as a USB Human Interface Device (HID), meaning it can act like a standard keyboard when plugged into a computer or mobile device. This enables programmable keystroke injection at the hardware level, allowing predefined commands to execute instantly without requiring drivers or software installation. Because it operates directly over native USB protocols, the device delivers fast, reliable performance that is independent of the host operating system.
Unlike traditional macro tools that rely on background applications, HackStar runs its logic onboard. Developers can program complex workflows using MicroPython, CircuitPython, or C/C++, defining sequences, delays, and conditional behavior. This makes it suitable for everything from productivity automation to controlled security testing and USB protocol demonstrations.
The device is built around the Raspberry Pi RP2350 microcontroller, a dual-core chip designed for modern embedded systems. With native USB support and hardware-level integration, the RP2350 enables low-latency HID execution and stable cross-platform compatibility. It also introduces advanced features like TrustZone and hardware cryptographic acceleration, making HackStar a secure option for sensitive workflows.
Firmware, examples, and development resources are publicly available, giving users full control over how the device behaves. This transparency eliminates hidden functionality and allows developers to customize the platform to fit their exact needs.
HackStar is currently available on Kickstarter, starting at $34. Shipping is expected to begin in June 2026.