# TwoTrees SK1: reconstructing the display UART interface

> TwoTrees SK1 display research documents the printer's HMI UART commands and incoming touch, numeric and startup frames. The repository uses that mapping in a Rust client connected to Moonraker, a Python demonstration host and an experimental ESP32-C6 display client.

- 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/vap-tech/twotrees-sk1-display>
- Primary source: <https://github.com/vap-tech/twotrees-sk1-display/blob/1f03081c84b8f67e24c572daae580464af8d6f75/display_uart_raw_protocol.md>
- Catalog page: <https://awesomerea.org/resources/twotrees-sk1-display-case/>
- Record JSON: <https://awesomerea.org/resources/twotrees-sk1-display-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/twotrees-sk1-display-case/index.md)

## Requirements & limits

- **Prerequisites:** The TwoTrees SK1 display uses 5 V power and 3.3 V RX/TX logic levels.
- **Scope:** The Rust client targets the printer's HMI UART and Moonraker; the ESP32 client targets ESP32-C6.
- **Limits:** The protocol manual includes probe and debug commands that require checking on a live HMI.
- **License:** MIT license.

## Primary sources

1. <https://github.com/vap-tech/twotrees-sk1-display/blob/1f03081c84b8f67e24c572daae580464af8d6f75/display_uart_raw_protocol.md>
2. <https://github.com/vap-tech/twotrees-sk1-display/blob/1f03081c84b8f67e24c572daae580464af8d6f75/README.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.