Case study

TSP143IIIU: reconstructing StarIO printer exchanges for a USB-to-Wi-Fi bridge

TSP143IIIU Wi-Fi Print Bridge reconstructs StarIO exchanges so a Raspberry Pi can present a USB-only receipt printer to Shopify POS as a Star LAN printer. Its protocol research documents UDP discovery packets, USB and LAN ASB frame differences, ETB counters, and TCP/9101 status polling from hardware captures.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06

Stars: 5
Last commit: 2026-04-25
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: A Raspberry Pi Zero 2 W, TSP143IIIU USB printer, and Shopify POS client are the documented setup.
Scope: The protocol observations use a TSP143IIILAN reference printer with firmware V2.2.
License: MIT.

Cite

BibTeX

@misc{tsp143-stario-protocol-case,
  title = {{TSP143IIIU: reconstructing StarIO printer exchanges for a USB-to-Wi-Fi bridge}},
  howpublished = {\url{https://github.com/gnaunited/tsp143-bridge}},
  url = {https://github.com/gnaunited/tsp143-bridge},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/tsp143-stario-protocol-case/}}
}

Plain text

TSP143IIIU: reconstructing StarIO printer exchanges for a USB-to-Wi-Fi bridge. https://github.com/gnaunited/tsp143-bridge (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/tsp143-stario-protocol-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · gnaunited/tsp143-bridge · Revision fdeae06
research/README.md GitHub · gnaunited/tsp143-bridge · Revision fdeae06
research/asb-states/notes.md GitHub · gnaunited/tsp143-bridge · Revision fdeae06