The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The AT89S52 provides the. AT89S52 comes from the popular family of Atmel Microcontrollers. It is an 8- bit CMOS microcontroller with 8K as Flash memory and microcontroller is from Intel manufacturer and they’re the one who developed the basics version of microcontroller. So it’s like the first family of.

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Telecommunication and Electronics Projects. In order to program the Atmel microcontroller we will need an IDE Integrated Development Environmentwhere the programming takes place. The datasheet of the AT89S52 Microcontroller and more detailed Features can be found at the bottom of this page. Contrast Setting, connected to Vcc thorough a variable resistor. Arduino, Keil uVision are the most used platforms to name a few.

Shortly, RAM is used to store variable during program execution, while the EEPROM memory is used to store the program itself, that’s why it is often referred to as the ‘program memory’. The above video shows lcd interface on bread board Can this project be shown on general purpose board??? This pin is used to enable the module when a high to low pulse is given to it. Function msdelay has been created to create delay in milliseconds and called frequently in the program, it is called so that LCD module can have sufficient time to execute the internal operation and commands.

Most of the ports of the 89S52 have ‘dual function’ meaning that they can be used for two different functions. If you are planning on serious programming and expansion with community support then Keil is recommended.


Although it may be time taking because you need to understand and connect 16 pins of LCD to the microcontroller. Blog Archive Those ports can be used to output DATA and orders do other devices, or to read the state of a sensor, or a switch. Check your circuit connections again.

Can u tell me how to store multiple strings into LCD? Designed by Gabfire Themes. Enable, a high to low pulse need to enable the LCD. Generally this is set to 0, because we do not have need to read data from LCD.

AT89C52 Microcontroller

Newer Post Older Post Home. Posted by Muhammad Ahmed on Diagram below shows the pin configuration of the 89S52, where the function of each pin is written next to it, and, if it exists, the dual function is written between brackets.

Circuit diagram for LCD interfacing with microcontroller is shown in the above figure. All the pins are clearly understandable by their name and functions, except the control pins, so they are explained below:. Convert to Blogger by SimplexDesign.

Some important command instructions are given below: You can follow any responses to this entry through the RSS 2. Each MCU has its own advantage and disadvantage. Middle leg of the variable resistor is connected to PIN 3 and other two legs are connected to voltage supply and Ground.

Atmel microcontroller mlcrocontroller be programmed with different software’s that microcontrolper available in the market.

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

TL — Programmable Reference Voltage. Since it is similar to the trust worthy architecture these microcontrollers are as per industry standard.

Code Explanation I have tried to explain the code through comments in code itself. So first let’s understand the 16 pins of LCD module. A pulse of ns should be given. Feel free to leave a response.


RS is the register select pin. Filed under DescriptionHow Stuff Works? Their collection has just piled up after Microchip has acquired Atmel.

However you can utilise external modules for the same. Some important command instructions are given below:. There are two different memory types: Get Our Weekly Newsletter! Also simulating you program on software before trying it on hardware will save a lot of time. Submitted by admin on 12 September And we will set it to 0 if we are sending some command instruction like clear the screen hex code Pin 3 V0 is connected to voltage Vcc through a variable resistor of 10k to adjust the contrast of LCD.

Micrpcontroller Microcontroller also has Operating mode, Idle Mode and Power down mode which makes it suitable for battery operated applications. It is the CPU that will Microcnotroller the program from the FLASH memory and Execute it by interacting with the different peripherals Diagram below shows the pin configuration of the 89S52, mirocontroller the function of each pin is written next to it, and, if it exists, the dual function is written between brackets.

Can I use blue character display instead of green. Thanku for ur explanation and code. A simpler architecture can be represented below. You microcontrloler first of all glance over the project here. The below points are just suggestions which might help one to select a MCU.