# 1st Player RT LCD: reconstructing a case-display HID protocol

> 1st Player RT LCD reconstructs the USB HID control protocol for displays in 1st Player RT5, RT7, and RT9 cases. Its protocol notes describe 64-byte output reports, and Python scripts drive CPU and GPU telemetry, scrolling text, and a panel test on Linux.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/TaZ1kS/1stplayer-rt-lcd>
- Primary source: <https://github.com/TaZ1kS/1stplayer-rt-lcd/blob/7fc4a9b69f63e6ac7f37ea587c80208f1ea7d912/docs/PROTOCOL.md>
- Catalog page: <https://awesomerea.org/resources/1stplayer-rt-lcd-case/>
- Record JSON: <https://awesomerea.org/resources/1stplayer-rt-lcd-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/1stplayer-rt-lcd-case/index.md)

## Requirements & limits

- **Prerequisites:** Linux, Python 3.8 or newer, and a compatible RT5, RT7, or RT9 display are required.
- **Scope:** The documented test unit uses USB ID 5131:2007.
- **License:** MIT license.

## Primary sources

1. <https://github.com/TaZ1kS/1stplayer-rt-lcd/blob/7fc4a9b69f63e6ac7f37ea587c80208f1ea7d912/docs/PROTOCOL.md>
2. <https://github.com/TaZ1kS/1stplayer-rt-lcd/blob/7fc4a9b69f63e6ac7f37ea587c80208f1ea7d912/README.en.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.