This document introduces the user manual for the LED keyboard module launched by Sunplus University Program. The module integrates LED, KEY, and digital tube functions, and can be designed with any microcontroller for software and hardware interface. The document provides detailed information on the module's features, interface instructions, and usage methods, as well as application examples and self-test procedures.
This manual describes the Sunplus LED Keyboard Module, an expansion board for micro‑controller projects that integrates LEDs, keys, and 7‑segment displays. It explains the basic features, power requirements, and how the module can be connected to any MCU using a simple ribbon cable.
The document includes hardware details such as circuit schematics, major components (ULN2003A, LG5621AH, LG5641AH), interface descriptions, self‑test procedures, and a parts list. Application examples and wiring diagrams help users quickly integrate the module into their designs. This manual is written in Chinese.
| Supply Voltage | DC5V (also DC3.3V optional) |
|---|---|
| Display Digits | 6‑digit 8‑segment, max 999999 |
| Number of LEDs | 8 |
| Potentiometer Output | 0‑3.3 V analog voltage |
The module operates on DC5V and can also be powered with DC3.3V.
Shorting jumper blocks 1‑4 selects the 2×4 key layout; shorting block 5 selects the 1×8 layout.
The package contains the LED keyboard board and two 10‑pin ribbon cables.