• Size
• mm

• Resolution
• 40x2
• Dot

• Model No.
• HSM04002A

• Product Type
• Mono COB

• Shape of Display
• Bar

• Outline Size
• 182x3x14
• mm

• Active Area
• 154.4x18.6
• mm

• View Angle
• 6o'clock

• Drive IC
• AIP31066

• Interface
• Parallel

• Touch Screen
• NA

• OP
• -20°C~+70°C
• ℃

• Remark

HSM4002A – 40×2 Character LCD Display (STN Blue Negative) with 5V Parallel Interface

Product Overview

The HSM4002A LCD module provides 40 characters × 2 lines, designed for applications requiring long text or multi-parameter display.

It uses STN blue negative transmissive technology with a white LED backlight, providing high contrast and readability in indoor or low-light environments.

The module is driven by an HD44780-compatible controller, supporting 5V single power supply and 8-bit parallel interface, ensuring full compatibility with MCUs such as STM32, Arduino, and Raspberry Pi.

With a –10°C to +60°C operating range and strong mechanical design, it is widely used in industrial automation panels, test equipment, and professional control systems.

Key Features

40×2 Character Display (STN-Blue Negative) – High contrast and wide readability.

HD44780-Compatible Controller – Standard communication interface for MCU integration.

White LED Backlight (5V / 120mA) – Uniform brightness and long service life.

Operating Temperature: –10°C ~ +60°C – Suitable for industrial environments.

5V Power Supply – Simple, standard, and easy to integrate.

Extra-Wide Display Format – Suitable for text-rich applications.

Compact 182×33 mm PCB – Space-efficient and durable structure.

Applications

Industrial Equipment Displays – Process monitoring and parameter control.

Measurement & Diagnostic Devices – Multi-line data visualization.

Embedded Systems – Compatible with Arduino, STM32, and other microcontrollers.

Automation & Test Benches – Large text readouts for operators and engineers.

Technical Specifications