# APC SU1400RM2U: display pinout and LED driver reconstruction

> An Arduino sketch reconstructs control of the APC SU1400RM2U display panel from its cable pinout and LED mapping. It identifies the A6276ELW LED driver, assigns latch, clock and serial-data lines, and demonstrates individual and sequential LED updates.

- 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/BiggRanger/APC-SU1400RM2U-Reverse-Engineering>
- Primary source: <https://github.com/BiggRanger/APC-SU1400RM2U-Reverse-Engineering/blob/502e1733601cfd0f7ac6aa0337dcc65decc47330/Display/APC_SU1400RM2U_Display.ino>
- Catalog page: <https://awesomerea.org/resources/apc-su1400rm2u-display-case/>
- Record JSON: <https://awesomerea.org/resources/apc-su1400rm2u-display-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/apc-su1400rm2u-display-case/index.md)

## Requirements & limits

- **Prerequisites:** An Arduino-compatible controller must connect to the display panel's latch, clock, serial-data, power and ground pins.
- **Scope:** The sketch covers display LEDs and button inputs.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/BiggRanger/APC-SU1400RM2U-Reverse-Engineering/blob/502e1733601cfd0f7ac6aa0337dcc65decc47330/Display/APC_SU1400RM2U_Display.ino>
2. <https://github.com/BiggRanger/APC-SU1400RM2U-Reverse-Engineering/blob/502e1733601cfd0f7ac6aa0337dcc65decc47330/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.