SMS0403 LCD module can display 4 digits with decimal point, wide voltage working range, low working current, widely used in handheld instruments, intelligent display instruments and so on.
The SMS0403 is a liquid‑crystal display module that shows 4‑digit decimal numbers with low power consumption. It works with a microcontroller via a two‑wire serial interface and can be used in handheld or fixed‑position devices.
Key features include a 4‑digit display with a decimal point, operating voltage of 2.7‑5.5 V, low current draw, a 6° viewing angle, and a compact physical size. The manual lists the pin mapping, signal definitions, and mechanical dimensions for integration. This manual is written in Chinese.
| Display capacity | 4‑digit decimal |
|---|---|
| Supply voltage | 2.7 V – 5.5 V |
| Working current | 20 µA (3.0 V), 300 µA (5.0 V) |
| Operating temperature | -10 °C – +50 °C |
| Storage temperature | -20 °C – +70 °C |
| Interface type | Two‑wire serial interface |
The module operates from 2.7 V to 5.5 V.
It can display four decimal digits.
It uses a two‑wire serial interface.