Case study

tinyscreen: reconstructing an ArtInChip USB display protocol

tinyscreen implements a Linux client for ArtInChip USB bar displays using a reconstructed device protocol. It performs the display's two-phase RSA challenge-response exchange and sends JPEG frames with 20-byte headers over USB bulk transfers. The client can present dashboards, video, web pages or an EVDI virtual monitor.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 4
Last commit: 2026-04-05
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Linux and an ArtInChip USB display; the documented working model is the ZHAOCAILIN 11.3-inch 1920×440 display with USB ID 33c3:0e02.
Prerequisites: EVDI virtual-monitor mode requires an X11 session, evdi-dkms, libevdi1 and xdotool.
Testing evidence: Support for USB IDs 33c3:0e01, 33c3:0e04 and 33c3:0e05 is listed as untested.
License: MIT.

Cite

BibTeX

@misc{tinyscreen-artinchip-case,
  title = {{tinyscreen: reconstructing an ArtInChip USB display protocol}},
  howpublished = {\url{https://github.com/hevnsnt/artinchip-linux}},
  url = {https://github.com/hevnsnt/artinchip-linux},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/tinyscreen-artinchip-case/}}
}

Plain text

tinyscreen: reconstructing an ArtInChip USB display protocol. https://github.com/hevnsnt/artinchip-linux (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/tinyscreen-artinchip-case/

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Primary sources

README.md GitHub · hevnsnt/artinchip-linux · Revision f483d9a