CLCD420-B (Serial Character LCD Display)

This Serial Character LCD Module allows easy text display on an LCD through a simple serial communication interface. Unlike conventional character LCDs that rely on parallel interfaces and require many signal lines with strict timing control, this module significantly reduces wiring and software complexity.

Traditional character LCDs typically need around a dozen control and data lines, as well as detailed knowledge of LCD timing sequences. In contrast, this module uses serial communication, so text can be displayed by simply sending characters through I²C or RS-232. This makes it especially suitable for compact systems and applications where I/O resources are limited.

By minimizing hardware connections and eliminating complicated control procedures, this serial character LCD module provides a practical, reliable, and user-friendly display solution for embedded systems, industrial controllers, and HMI applications.

• 20 × 4 blue character LCD
• Supports I²C (4-pin) and RS-232 communication (3-pin or 4-pin)
• Built-in LED backlight for clear visibility

Included: 4-pin RCable for I²C (CUNET) communication

Dimension