I2C LCD module

Description

The I2C Serial Interface 1602 LCD Module is a versatile display solution for your Arduino projects. Designed to simplify the connection between your microcontroller and an LCD display, this module offers significant advantages over traditional parallel connections.

Key Features:

1. I2C Communication:
   • Utilizes the I2C bus for data and control communication.
   • Requires only clock and data lines, reducing the complexity of wiring.
2. LCD Compatibility:
   • Compatible with LCDs using the HD44780 controller (commonly found in 16×02, 16×04, and 20×04 displays).
   • Works seamlessly with Arduino and other microcontrollers supporting I2C.
3. Address Configuration:
   • The module provides 8 address options (0x20 to 0x27).
   • Allows simultaneous control of up to 8 interface modules using just 2 connections.
4. Built-in Contrast Adjustment:
   • Includes an onboard potentiometer for adjusting display contrast.
   • Fine-tune the visibility of your content.
5. Backlight Control:
   • Backlight can be controlled via firmware or jumper wires.
   • Customize the display appearance as needed.

Specifications:

• Display Type: Negative white characters on a blue backlight.
• I2C Address: Default address is 0x3F (may vary based on the manufacturer).
• Supply Voltage: 5V.
• Interface: I2C (4-bit data and control lines).
• Board Size: 80×36 mm.

Setting Up:

1. Address Selection:
   • The default slave address is 0x3F (check your specific module).
   • Some modules may use 0x27 as the default address.
   • Refer to the manufacturer’s documentation for the correct address.
2. Soldering:
   • Solder the I2C-to-LCD piggy-back board to the 16-pin LCD module.
   • Ensure straight pins and proper alignment during soldering.
3. Connection:
   • Connect the I2C module to your Arduino or compatible microcontroller.
   • Use clock (SCL) and data (SDA) lines for I2C communication.

Applications:

• Information Displays: Show data, messages, or sensor readings.
• Projects with Limited I/O Pins: Save I/O pins by using I2C.
• Educational Kits and Prototypes: Ideal for beginners and advanced users.