SMS0427 is an LCD display module that uses a digital pen segment LCD display, capable of displaying 4-digit numbers and 28 segment prompts. The module operates at a voltage of 4.8V to 5.2V, with a static power consumption current of 300uA (5.0V), and is suitable for voice classrooms.
The SMS0427 LCD display module provides a 4‑digit numeric display with 28 segment indicators, low power consumption and a serial three‑wire interface compatible with MJU microcontrollers. It operates at 4.8 V‑5.2 V with a typical voltage of 5.0 V and consumes about 300 µA in standby.
Physical dimensions are 79.0 mm × 71.0 mm × 3.0 mm, and the module supports a viewing angle of 6 × 0° and operates from –10 °C to +50 °C. An address mapping table is provided for configuring the segment data. This manual is written in Chinese.
| Display capacity | 4 digits + 28 segment indicators |
|---|---|
| Standby power consumption | ≈300 µA at 5.0 V |
| Character height | 8.0 mm |
| Maximum humidity | <85 % RH |
| Operating temperature range | -10 °C to +50 °C |
| Storage temperature range | -20 °C to +60 °C |
| Display type | Reflective LCD |
| Interface | 3‑wire serial (CB type) |
The module can display 4 numeric digits and 28 segment indicators.
Standby current is about 300 µA at 5.0 V.
It works from –10 °C up to +50 °C.