Tool

Twonkie

Twonkie is a USB-PD sniffer, injector and sink built around a four-layer board derived from the open-source Twinkie design. It supplies board fabrication files, assembly guidance and STM32 firmware sources for inspecting USB Power Delivery traffic.

Targets: Protocol
Category: Protocol analysis tools
Relationship: Foundation tool
Sources reviewed: 2026-11-06

Stars: 416
Last commit: 2025-09-19
Language: C

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: Building the hardware requires a fabricated board, components and fine-pitch SMT soldering.
Prerequisites: Firmware builds require arm-none-eabi-gcc; flashing requires dfu-util.
License: Hardware design: CC BY 4.0; firmware: BSD 3-Clause.

Cite

BibTeX

@misc{twonkie-usb-pd-sniffer,
  title = {{Twonkie}},
  howpublished = {\url{https://github.com/dojoe/Twonkie}},
  url = {https://github.com/dojoe/Twonkie},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/twonkie-usb-pd-sniffer/}}
}

Plain text

Twonkie. https://github.com/dojoe/Twonkie (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/twonkie-usb-pd-sniffer/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · dojoe/Twonkie · Revision 64a9e85
fw/README.md GitHub · dojoe/Twonkie · Revision 64a9e85

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