I2C LCD MODULE FOR 16x2 and 16x4 lcd

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I2C LCD MODULE FOR  16x2 and 16x4 lcd

IIC/I2C/TWI/SPI Interface Module Serial Board Module

URDU VIDEO TUTORIAL OF I2C MODULE

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₨ 120

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These convenient devices are used to give HD44780-compatible interface LCD modules a serial interface via the I2C bus. This allows you to control the LCD with only two data wires from your microcontroller (and power of course).

We may send one of two versions of this device - the difference is the controller IC. If you have the PCF8574T. the default I2C bus address is 0x27. If you have the PCF8574AT the default I2C bus address is 0x3F.

A jumper on the back controls power to the backlight, and a contrast potentiometer is also fitted. 

I2C interface for LCD 

This LCD2004 is a great I2C interface for 2x16 and 4x20 LCD displays. With the limited pin resources, your project may be out of resources using normal LCD shield. With this I2C interface LCD module, you only need 2 lines (I2C) to display the information. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. Fantastic for Arduino based projects. 

Specification

  • Compatible with 16x2 and 20x4 LCD's

  • Default I2C Address = 0X27 

  • Address selectable - Range 0x20 to 0x27

Board Layout

i2c lcd display

I2C Address Setup

Arduino I2C Display

The LCD2004 board utilized the PCF8574 I/O expander. This nifty little chip provides eight bits of parallel I/O addressable by a I2C bus address – 0x00 to 0x27. SainSmart tied all address leads to Vcc, so the LCD2004 board’s I2C address is permanently fixed at hex 27. This is rather limiting since no additional LCD2004s can be added to the bus. Anyway, you simply address the board and write an eight bit value which is then presented on the output pins of the PCF8574, which, in this case, are connected to the HD44780 based LCD screen.

lcd2004 Address Selection

Controlling your I2C Display with Arduino

i2c display arduino

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I2C LCD MODULE FOR 16x2 and 16x4 lcd

I2C LCD MODULE FOR 16x2 and 16x4 lcd

I2C LCD MODULE FOR  16x2 and 16x4 lcd

IIC/I2C/TWI/SPI Interface Module Serial Board Module

URDU VIDEO TUTORIAL OF I2C MODULE