Case study

SainSmartDDS140: a USB oscilloscope client built from protocol research

SainSmartDDS140 reimplements control of the SainSmart DDS140 USB oscilloscope through its recovered USB protocol. The author describes decompiling the vendor .NET app, examining its WinUSB wrapper and checking commands against hardware. A pyusb client exposes capture, calibration, recording and a local browser interface, while protocol notes document control transfers and interleaved channel samples.

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: 0
Last commit: 2026-10-31
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: A SainSmart DDS140 is required for device capture and hardware self-tests.
Prerequisites: Python 3, pyusb and libusb-1.0 are required for the client.
Limits: Hardware trigger, eight-channel logic analysis and the signal generator are not implemented.
License: MIT license.

Cite

BibTeX

@misc{sainsmart-dds140-case,
  title = {{SainSmartDDS140: a USB oscilloscope client built from protocol research}},
  howpublished = {\url{https://github.com/4noha/SainSmartDDS140}},
  url = {https://github.com/4noha/SainSmartDDS140},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/sainsmart-dds140-case/}}
}

Plain text

SainSmartDDS140: a USB oscilloscope client built from protocol research. https://github.com/4noha/SainSmartDDS140 (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/sainsmart-dds140-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · 4noha/SainSmartDDS140 · Revision e6d06f6
docs/protocol.md GitHub · 4noha/SainSmartDDS140 · Revision e6d06f6