SMS1802 standard digital pen segment type LCD module (LCM) is a standard digital pen segment type LCD display (LCD), can display 18 digits and 1 segment prompt, low power consumption, with MCU single chip microcomputer using three-wire serial port connection, widely used in hand-held instruments, intelligent display instruments.
This manual describes the Sunman SMS1802 LCD display module, a standard digital‑interface liquid crystal display capable of showing 18 digits and one indicator segment. It is designed for low‑power operation and connects to an MCU via a three‑wire serial bus, making it suitable for portable devices and smart instruments.
The document lists the module's key technical parameters, including voltage range, power consumption, dimensions, viewing angle, operating temperature, and interface pin assignments, as well as an address mapping table for display control. This manual is written in Chinese.
| Display capacity | 18 digits + 1 segment indicator |
|---|---|
| Operating voltage | 2.8 V ~ 3.2 V |
| Best operating voltage | 3.0 V |
| Static power consumption | 1.6 mA @ 3.0 V |
| Power‑down current | 2 µA @ 3.0 V |
| Character height | 7.5 mm |
| Operating temperature | -10 °C ~ +50 °C |
| Display mode | Reflective positive display |
| Storage temperature | -20 °C ~ +60 °C |
| Interface type | Three‑wire serial interface (B type) |
| Physical dimensions | 33.0 mm × 8.3 mm × 4.8 mm |
The module operates from 2.8 V to 3.2 V.
It can display 18 digits plus one segment indicator.
It uses a three‑wire serial interface (B type).
The power‑down current is 2 µA at 3.0 V.