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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And control pins RS, RW and E to the pin 12,13,14 pin 2,3,4 of port 3 of microcontroller respectively. The popular 16 x 2 LCD can be interfaced with 89S52 in 4 bit or 8 bit mode. Although it may be time taking because you need at89s522 understand and connect 16 pins of LCD to the microcontroller.

Quote and Order boards in minutes on https: Your email address will not be published. Program for interfacing LCD to microcontroller is shown below.

AT89S52 Mini Development Board – LCD Interfacing

Send 01H for clearing the display and return the cursor. High level at this pin enables read mode and low level at this pin enables write mode. Some important command instructions are given below:. El retardo es demasiado corto. The reset circuit, oscillator circuit and power supply need to be provided for the proper working of the circuit.

Send 06H for incrementing cursor position. Interfaing continuing to use this website, you agree to their use. The necessary commands for the LCD initialization are defined at the end part of the program. Thanku for ur explanation and code. You can adjust the small blue preset if nothing is seen on the LCD.


To save port pins of microcontrolleroften the LCD is used in 4 bit mode. Please check — http: Now the Header file is included in to the interfacin folder. Including this header file into your project makes programming much easier.

Interfacing of LCD with AT89S52(8051)

intrefacing Feed in the following code: Circuit diagram for LCD interfacing with microcontroller is shown in the above figure. The module were are talking about here is type number JHDA which is a very popular one. There is nothing appearing on 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. Hi I constructed the circuit exactly as it is on my simulator and just copied the program and nothing is appearing on the LCD.

Ceramic capacitors C1,C2 and crystal X1 is related to the clock circuitry which produces the system clock frequency. The JHDA has two built in registers namely data register and command register.

Interfacing of LCD with AT89S52() | STRAIG

Can I use blue character display instead of green. LCD interfacing with 89s52 Tutorials 4. Could you explain me how DELY subroutine produces the delay? Place data byte on the data register.

The steps that has to be done for initializing the LCD display is given below and these steps are common for almost all applications. Repeat above steps for sending another data. E pin is for enabling the module. Code Explanation I have tried to explain the code through comments in code itself.


Click OK to get the Target1 on the project pane. Capacitor C3, resistor R3 and push button switch S1 forms the reset circuitry. All the pins are clearly understandable by their name and functions, except the control pins, so they are ar89s52 below:.

AT89S52 Mini Development Board – LCD Interfacing

And set it to wtih, if we are reading from LCD module. Middle leg of the variable resistor is connected to PIN 3 and other two legs are connected to voltage supply and Ground. Get Our Weekly Newsletter! Now the HEX file is successfully created inside your project folder. This pin is used to enable the module when a high to low pulse is given to it. Previous post Next post. Can u tell me how to store multiple strings into LCD? Data register is for placing the intetfacing to be displayedand the command register is to place the commands.

See the circuit diagram for better understanding. Now you can see the characters displayed on the LCD. Getting Started with Microcontroller.