LCD 16×2 Blue Backlight Display

The LCD 16×2 Blue Backlight Display shows two lines of 16 characters each with a striking blue backlight. It uses the standard HD44780 controller for easy interfacing with Arduino and other microcontrollers using 4 or 8 data lines.

Key Features

• 16 characters x 2 lines display area
• Blue LED backlight for dark environments
• HD44780 compatible controller
• 5×8 dot matrix character font
• 4-bit or 8-bit parallel interface
• Adjustable contrast via potentiometer
• Wide viewing angle

Technical Specifications

Applications

• Data display terminals
• User interface panels
• Sensor value display
• Menu navigation systems
• Alarm and status panels
• Industrial displays

Important Notes

• Requires 6-7 GPIO pins (4 data + RS + E + optional RW)
• Use LiquidCrystal library for Arduino
• Backlight resistor value affects brightness and current draw
• Contrast potentiometer (10K) required for visible display
• I2C backpack available to reduce pin count to 2 (SDA/SCL)