16x2 Character LCD Display Module 5V Blue/Green Backlight

16x2 Character LCD Display Module – 5V Blue/Green Backlight

The 16x2 Character LCD Display Module is the most iconic text display in electronics education and prototyping. Capable of showing 2 rows of 16 characters each, it uses the industry-standard HD44780 controller and is compatible with virtually every microcontroller platform via parallel or I2C (with I2C backpack) interface.

Key Specifications

• Display Format: 16 columns × 2 rows (32 characters total)
• Controller: HD44780 (or compatible)
• Interface: 4-bit / 8-bit parallel (16-pin header)
• Operating Voltage: 5V DC
• Backlight: Blue (white text) or Green (black text)
• Contrast: Adjustable via potentiometer
• Character Size: 5×8 dot matrix per character
• Connector: 16-pin 2.54mm header

Compatibility & Use Cases

Directly compatible with Arduino, ESP32, NodeMCU, and Raspberry Pi using the LiquidCrystal library (parallel) or LiquidCrystal_I2C library (with I2C backpack). Common applications include:

• Sensor data readout (temperature, humidity, distance)
• Menu and user interface displays for embedded systems
• Real-time clock and countdown timer displays
• IoT device status and IP address display
• STEM and beginner electronics project builds

Add an I2C backpack module to reduce wiring from 6 pins down to just 2 (SDA + SCL) for cleaner builds.

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