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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Here we only need to write to the LCD module.

LCD interfacing with 89s52 | alselectro

Thanks for dropping by alselectro! The popular 16 x 2 LCD can be interfaced intefacing 89S52 in 4 bit or 8 bit mode. Could you explain me how DELY subroutine produces the delay? Thankyou for taking the efforts! This will saves the number of GPIO pins needed for other purpose. This will save us 4 pins of our controller which we might employ it for other purpose.

AT89S52 Mini Development Board – LCD Interfacing

Sorry for the question. The necessary commands for the LCD initialization are defined at the end part of the program. Data register is for placing the data to be displayedand the command register is to place the commands.


Contrast Setting, connected to Vcc thorough a variable resistor. The programming part is done in assembly language instead of embedded C.

Click on AUTO to perform the programming. Some important command instructions are given below: Now the Header file is included in to the project folder. Log in or register to post Comment. Take a look around and grab the RSS feed to stay updated. Blog Stats 1, hits Follow Blog via Email Enter your email address to follow this blog and receive notifications intervacing new posts by email. Anybody can send me the programing for lcd interfacing with microcontroller and xbee s2.

AT89S52 Mini Development Board – LCD Interfacing

Send 01H for clearing the display and return the cursor. Connect the ISP programmer to the Development board. Each command will make the module to do a particular task.

Can u tell me how to store multiple strings into LCD? Place data byte on the data register.

Generally this is set to 0, because we do not have need to read data from LCD. To find out more, including how to control cookies, see here: Now click F7 or the Build button to start building target. Program for interfacing LCD to microcontroller is shown below.


Pin 3 V0 is connected to voltage Witu through a variable resistor of 10k to adjust the contrast of LCD. VEE pin is meant for adjusting the contrast of the LCD display and the contrast can be adjusted by varying the voltage at this pin. The above video shows lcd interface on bread board Can this project be shown on general purpose board???

We will discuss in detail about the commands later. As shown in the circuit diagram, port 0 of the controller is used for interfacing it with LCD module.

The steps that has to be done for initializing the LCD display is given below and these steps interfacng common for almost all applications. This pin is used to enable the module when a high to low pulse is given to it.