The 16×2 Serial LCD Module Display with I2C interface is a compact, easy-to-use character display ideal for Arduino beginners, hobbyists, and advanced developers. Designed to simplify wiring and save valuable microcontroller pins, this module displays 16 characters per line across 2 rows, featuring bright white characters on a blue backlit screen.

Traditional parallel LCDs require many pins, especially on Arduino Uno, making projects messy and difficult to wire. This I2C LCD Display solves that problem by using only four pins—VCC, GND, SDA, and SCL—significantly reducing wiring complexity and freeing multiple I/O pins for sensors, modules, and other peripherals. Its standard XH2.54 connectors allow direct jumper-wire connection without soldering.

The module features an adjustable contrast control and configurable I2C address (0x20–0x27), ensuring compatibility even in projects that use multiple I2C devices such as IMUs, accelerometers, gyroscopes, and ultrasonic sensors. With stable 5V operation and wide compatibility across Arduino boards, this I2C LCD is perfect for displays, menus, sensor readouts, and interactive embedded systems.

Features:

• 16×2 character LCD with bright white-on-blue backlight

• I2C interface requiring only 4 connection pins

• Saves Arduino digital/analog pins compared to standard parallel LCDs

• Compatible with all major Arduino boards including Uno, Mega, Leonardo, Nano, Micro

• Configurable I2C address range: 0x20–0x27 (default 0x20)

• Standard XH2.54 header for easy wiring without soldering

• Adjustable display contrast using onboard potentiometer

• Supports Arduino LiquidCrystal_I2C library

• Clean, compact module suitable for breadboards and permanent projects

• Ideal for menu displays, sensor data monitoring, and IoT dashboards

Specifications:

• Display Format: 16 characters × 2 lines

• Backlight: Blue background with white characters

• Supply Voltage: 5V

• Interface: I2C/TWI

• I2C Address Range: 0x20–0x27

• Compatibility: Arduino UNO, Mega, Leonardo, 101, Micro, Nano, Mini

• Connectors: XH2.54 I2C header (VCC, GND, SCL, SDA)

• Adjustable Contrast: Yes

• Physical Size: 80 × 36 × 20 mm

How to Use:

• Connect the display’s VCC, GND, SDA, and SCL pins to the corresponding Arduino I2C pins

• Install and include the LiquidCrystal_I2C library in your Arduino IDE

• Use the I2C scanner sketch to confirm your module’s address if multiple I2C devices are connected

• Adjust the contrast using the onboard potentiometer for best visibility

• Write text, sensor values, menus, and system messages using simple library commands

• Mount the display on an enclosure or breadboard using its standard layout

Application Instructions:

• Ideal for displaying sensor readings in IoT and automation projects

• Useful for menu navigation in user-interface-based Arduino systems

• Suitable for robotics control panels and debugging displays

• Compatible with I2C hubs when multiple I2C modules are used

• Perfect for beginners learning LCD interfacing with minimal wiring

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