Case study

Chorus: reconstructing Logitech Harmony remote programming

Chorus identifies and backs up Logitech Harmony USB remotes, learns and decodes IR codes, and controls hubs over a local network. Its browser editor creates JSON device and activity configurations; technical notes document the vendor setup app and newer USB packet protocol.

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: 3
Last commit: 2026-10-13
Language: Python
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

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

How evidence classes are assigned

Requirements & limits

Prerequisites: Python 3.10 or newer and a supported Harmony remote or hub; macOS and Linux USB use libusb.
Testing evidence: The author reports read operations on a Harmony 665; hardware write operations remain unconfirmed.
Limits: The native binary configuration's device, activity, and button sections remain unmapped.
License: GPL-3.0-or-later.

Cite

BibTeX

@misc{chorus-harmony-remote-case,
  title = {{Chorus: reconstructing Logitech Harmony remote programming}},
  howpublished = {\url{https://github.com/av1452/chorus}},
  url = {https://github.com/av1452/chorus},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/chorus-harmony-remote-case/}}
}

Plain text

Chorus: reconstructing Logitech Harmony remote programming. https://github.com/av1452/chorus (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/chorus-harmony-remote-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

docs/protocol-packet-hid.md GitHub · av1452/chorus · Revision a5b5138
README.md GitHub · av1452/chorus · Revision a5b5138
pyproject.toml GitHub · av1452/chorus · Revision a5b5138