About¶

What is Donguru?¶

Donguru (ドングル) is a USB-Type-C dongle that turns a single Type-C port into a small, controllable lab bench for hardware debugging, board bring-up and testing.

It provides a USB hub that controls the downstream USB port(s), together with USART / I2C / GPIO / ADC interfaces to probe and drive a target. It also includes a power switch for downstream power and a power meter to monitor the power consumption of devices attached to the downstream USB port(s).

Because every function can be driven from the command line, Donguru is equally at home manually poking around and running one-shot test or debug sessions as it is with automated testing, scripting and validation.

For the full feature list and where to go next, see the home page.

What it's good for¶

• Terminal — access your SoC or MCU shell through UART.
• Debugging — poke at UART/I2C/GPIO/ADC and read the power meter to see what a board is actually doing.
• Testing — exercise interfaces and power in a controlled, observable way.
• Automated testing & scripting — wrap the donguru CLI or Python/Rust native interface in scripts and CI to power-cycle, stimulate and measure hardware reproducibly.

Why it exists¶

Bringing up, debugging and testing new hardware can be tricky, and it often means juggling several separate tools, such as a hub, a logic or serial adapter, a bench supply and a meter. Each of those varies in quality and in how well it supports things like pipeable CLI output and integration into CI.

As the creator of this project has felt this pain first-hand on many occasions, he decided to finally address it once and for all: good hardware, good firmware and a well-designed, Unix-style CLI that is flexible and integrates nicely wherever it is needed.

Project status¶

License¶

License terms are not finalised yet (TBD), though it will be open source.