This tutorial explains one of the real world application of Here we are going to explain how a 16×2 LCD is interfaced with AT89S The AT89S52 Mini Development Board includes on the board hardware support for 2×16 LCD display in 8bit mode configuration. A male berg. AT89S52 Mini Development Board – LCD Interfacing. The AT89S52 Mini Development Board includes on the board hardware support for 2×16 LCD display in.

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Pls provide alp programs for LCD interfacing. Comment if you come across any doubts. And control pins RS, RW and E to the pin 12,13,14 pin 2,3,4 of port 3 of microcontroller respectively.

The connection details are: Now you can see the characters displayed on the LCD. Sorry for the intertacing. Although it may be time taking because you need to understand and connect 16 pins of LCD to the microcontroller.

Place data byte on the data register. Data register is for placing the data to be displayedand the command register is witj place the commands.


A pulse of ns should be given. Thanks for dropping by alselectro! If we make RS pin low and put a data on the data line, the module will recognize it as a command.

A header file defining all Functions related to LCD control is created and available for Download here. The necessary commands for the LCD initialization are defined at the end part of the program.

LCD Interfacing with Microcontroller (89S52): Tutorial with Circuit Diagram and Code

Agree with you harish kumar If you got the solution kindly share with us. And set it to 1, if we are reading from LCD module. Connect the ISP programmer to the Development board. Can u tell me how to store multiple strings into LCD?

Interfacing of LCD with AT89S52(8051)

The JHDA has two built in registers namely data register and command register. Could you explain me how DELY subroutine produces the delay? Feed in the following code: Pulse E from high to low.

Enable, a high to low pulse need to enable the LCD.

AT89S52 Mini Development Board – LCD Interfacing

Previous post Next post. Capacitor C3, resistor R3 and push button switch S1 forms the reset circuitry. To save port pins of microcontrolleroften the LCD is used in 4 bit mode. Leave a Reply Cancel reply Your email address will not be published.


Hi I constructed the circuit exactly as it is on my simulator and just copied the program and nothing is appearing on the LCD. So first let’s understand the 16 pins of LCD module. Getting Started with Microcontroller. Sending data to the LCD.

AT89S52 Mini Development Board – LCD Interfacing

Your email address will not be published. Generally this is set to 0, because we do not have need to read data from LCD.

By continuing to use this website, you agree to their use. Please check — http: You can adjust the small blue preset if nothing is seen on the LCD.

As shown in the circuit diagram, port 0 of the controller is used for interfacing it with LCD module. Thanku for ur explanation and code. Get Our Weekly Newsletter! Including this header interrfacing into your project makes programming much easier.