In this note, we are going to learn about I2C LCD Module and also about its Pinout and Specifications as well. Welcome to Poly Notes Hub, a leading destination for polytechnic notes for diploma engineering students.

Author Name: Arun Paul.

Table of Contents

What is I2C LCD Module?

The I2C LCD module is a form of liquid crystal display (LCD) screen that interacts using the Inter-Integrated Circuit (I2C) protocol. This protocol enables simple communication between microcontrollers and peripheral devices, with minimal wire required. The I2C LCD module is normally made up of a display screen, a tiny circuit board, and an I2C interface chip. It is often used in electronics projects, such as Arduino-based projects, to show information in an easy-to-read format without requiring a large number of input/output pins on the microcontroller.

i2c lcd module with 16x2 lcd module - poly notes hub

Specifications of I2C LCD Module

Below we describe some I2C LCD Module Specifications –

Display type: Typically a regular character LCD (16×2, 20×4, etc.) or graphical LCD.
Communication protocol: I2C (Inter-Integrated Circuit).
Interface Chip: Integrated circuit that handles I2C connection.

Supply Voltage: The operating voltage required by the module to work properly (for example, 5V or 3.3V).
Backlight: Some modules include an integrated backlight, which is often adjustable or programmable via software.
Contrast Control: The ability to change the contrast between the displayed characters.

Operating temperature: The temperature range at which the module can perform reliably.
Dimensions: The module’s physical dimensions, which include the display screen size and total module size.
Compatibility: Details on which microcontrollers or development boards the module is compatible with, such as Arduino, Raspberry Pi, and others.

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