The 16×2 LCD Display is a versatile, low-cost alphanumeric screen widely used in embedded projects to show text, numbers, and simple symbols. Based on the HD44780 controller, it’s compatible with Arduino, Raspberry Pi, and other microcontrollers, making it ideal for DIY electronics, menu systems, and data monitoring.
Core Specifications
Display Type: Alphanumeric LCD (Liquid Crystal Display)
Display Size: 16 columns × 2 rows (32 characters total)
Character Resolution: 5×8 pixels per character
Backlight: LED (Blue/Green/Red/White options available)
Operating Voltage: 5V (standard) / 3.3V (some variants)
Current Consumption: ~1.5mA (without backlight), ~20mA (with backlight)
Interface & Communication
Interface: Parallel (4-bit or 8-bit mode)
Controller: Hitachi HD44780 (or compatible)
Pins: 16-pin header (VSS, VDD, V0, RS, RW, E, D0-D7, A, K)
Contrast Control: V0 pin (adjustable via potentiometer)
Viewing & Physical Details
Viewing Angle: 6 o’clock (standard) / 12 o’clock (available)
Dimensions: 80mm × 36mm × 12mm (typical)
Mounting: 4x mounting holes (for secure installation)
Key Advantages
✔ Easy to Use – Works with Arduino’s LiquidCrystal library
✔ Low Power – Consumes <2mA (without backlight)
✔ Adjustable Contrast – Fine-tune visibility via potentiometer
✔ Custom Characters – Create simple icons (e.g., logos, symbols)
Display & Readability
16 Columns × 2 Rows – Displays 32 characters at once
LED Backlight – Blue/Green/Red/White options for visibility in low light
5×8 Pixel Font – Clear, legible characters
Wiring & Compatibility
4-Bit Mode (Saves GPIO pins – uses D4-D7)
8-Bit Mode (Faster updates – uses D0-D7)
I2C Adapter Option – Reduces wiring (requires PCF8574 module)
Applications
Arduino Projects (sensor readouts, menus)
Raspberry Pi (system status displays)
Industrial Control Panels (simple UI)
DIY Clocks/Timers (time/date display)
Why Choose a 16×2 LCD?
Plug-and-Play – Works with Arduino out of the box
Low Cost – Cheaper than OLEDs for simple text
Widely Supported – Libraries available for all platforms
Pro Tip: Use I2C backpack modules to reduce wiring clutter!
Package Includes: 1 x 16x2 Parallel LCD Display