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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Log in or register to post Comment. The Microcontroller also has Operating mode, Idle Mode and Power down mode which makes it suitable for battery operated applications. And set it to 1, if we are reading from LCD module. RS is the register select pin. Newer Post Older Post Home. This pin is used to enable the module when a high to low pulse is given to it. Designed by Gabfire Themes. The above video shows lcd interface on bread board Can this project be shown on general purpose board???

Function msdelay has been created to create 89w52 in milliseconds and called frequently in the program, it is called so that LCD module can have sufficient time to microdontroller the internal operation and commands. A simpler architecture can be represented below. TL — Programmable Reference Voltage. Contrast Setting, connected to Vcc thorough a variable resistor. However you can utilise external modules for the same. Convert to Blogger by SimplexDesign. You can follow any responses to this entry through the RSS 2.


Atmel microcontroller can be programmed with different software’s that is available in the market. Since it is similar to the trust worthy architecture these microcontrollers are as per industry standard.

AT89S52 – Microcontrollers and Processors – Microcontrollers and Processors

Each MCU has its own advantage and disadvantage. The below points are just suggestions which might help one to select a MCU.

Generally this is set to 0, because we do not have need to read data from LCD. Pin 3 V0 is connected to voltage Vcc through a variable resistor of 10k to adjust the contrast of LCD.

Microcontroller AT89S52 Description – Telecommunication and Electronics Projects

Get Our Weekly Newsletter! Some important command instructions are given below:. You must first of all glance over the project here. Check your circuit connections again. Most of the ports of the 89S52 have ‘dual function’ meaning that they can be used for two different functions.

Quote and Order boards in minutes on https: The datasheet of the AT89S52 Microcontroller and more detailed Features can be found at the bottom of this page. Shortly, RAM is used to store variable during program execution, while the EEPROM memory is used 89d52 store the program itself, that’s why it is often referred to as the ‘program memory’. I have used these Pins in above circuit.

All the pins are clearly understandable by their name and functions, except the control pins, so they are explained below:. Also simulating you program on software before trying it on hardware will save a lot of time. Thanku for ur explanation and code. Hello, this very post is related to the RPM meter project.


Getting Started with Microcontroller. It is the CPU that will Read the program from the FLASH memory and Execute it by interacting with the different peripherals Diagram below shows the pin configuration of the 89S52, where the function microcontrller each pin is written next to it, and, if it exists, the dual function is written between brackets.

89S52 Microcontrollers IC

If you are planning on serious programming and expansion with community support then Keil is recommended. Arduino, Keil uVision microconrroller the most used platforms to name a few.

And we will set it to 0 if we are sending some command instruction like clear the screen hex code A pulse of ns should be given. Telecommunication and Electronics Projects. Their collection has just piled up after Microchip has acquired Atmel. And control pins RS, RW and E to the pin 12,13,14 pin 2,3,4 of microconfroller 3 of microcontroller respectively.

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. So first let’s understand the 16 pins of LCD module.