LCD Character 20×4
The 20×4 character LCD is a versatile display module capable of showing 20 characters per line across 4 lines. It is widely used in microcontroller and embedded system projects, including Arduino, Raspberry Pi, and other development boards.
This LCD features a backlight for better visibility, easy interfacing via parallel or I²C communication, and simple command-based control for displaying text, custom characters, and basic symbols. Its compact design makes it suitable for control panels, measurement devices, DIY electronics, and educational projects where textual output is needed.
Features:
- Displays 20 characters per line across 4 lines.
- Backlight for easy visibility in low-light conditions.
- Supports text display, custom characters, and basic symbols.
- Easy interfacing with microcontrollers (parallel or I²C).
- Low power consumption.
- Compact and durable design suitable for embedded applications.
Specifications:
| Parameter | Description |
|---|---|
| Display Type: | Character LCD |
| Characters: | 20 × 4 (20 per line, 4 lines) |
| Interface: | Parallel / I²C (optional module) |
| Backlight: | Yes |
| Operating Voltage: | 5 VDC |
| Operating Temperature: | 0°C to 50°C |
| Storage Temperature: | -20°C to 60°C |
| Pin Count: | 16 (standard parallel interface) |
| Supply Voltage: | 5 VDC |
| Current Consumption: | ~20–40 mA (without backlight), ~60–80 mA (with backlight) |
pinout:
| Pin | Function |
|---|---|
| VSS | Ground |
| VDD | +5 V supply |
| VO | Contrast adjustment (via potentiometer) |
| RS | Register select |
| RW | Read/Write select |
| E | Enable pin |
| D0–D7 | Data pins |
| A / K | LED backlight Anode / Cathode |
Applications:
- Microcontroller projects (Arduino, Raspberry Pi, STM32).
- Embedded systems display panels.
- Measurement and instrumentation devices.
- DIY electronics and hobby projects.
- Control panels and menu displays.
- Educational electronics projects.