#8051 microcontroller

AT89S52 8-bit Microcontroller

The AT89S52 comes from the popular 8051 family of Atmel Microcontrollers. It is an 8-bit CMOS microcontroller with 8K as Flash memory and 256 bytes of RAM. Since it is similar to the trust worthy 8051 architecture these microcontrollers are as per industry standard. It has 32 I/O pins comprising of three 16-bit timers, external interrupts, full-duplex serial port, on-chip oscillator and clock circuitry.

If you’re learning Embedded Systems or Electronics Engineering, understanding the Pin Diagram of 8051 Microcontroller is essential! This guide explains all 40 pins — from I/O ports to control and power pins — with clear and simple explanations.

Perfect for Diploma and Degree students preparing for exams or practicals.

📘 Read full article here: 👉 Pin Diagram of 8051 Microcontroller – Poly Notes Hub

Learn, Code, Test, be 8051 expert What you’ll learn

Program 8051 IO Ports 0,1,2, 3

Use built-in mikroC libraries

Program seven segments and character LCD

Program serial port

Program different modes of timers and counters

Program Serial port interrupt

Program two external hardware interrupts

Program timers interrupts

Things that you need to know only when programming in assembly will…

Familiarization with Timer Operation of 8051 Microcontroller

[su_heading]Familiarization with Timer Operation of 8051 Microcontroller[/su_heading] Introduction: Uses of Timers & Counters Interval Timing Periodic event timing Time base for measurements Event Counting Baud Rate Generation   8051 Timers 2 timers (Timer 0 and Timer 1) 16-bit timers (65,535) max Flag is set when the timer overflows Timers can be based on internal clock (OSC/6) or from…

How to use keil software for 8051

1) As you will open Keil software , you will see following screen:

  2) Create new project as shown below:

  3) Name it. Make sure that you already have made the separate folder to minimize confusion of new project files with old ones. New folder will keep all files related to only to one project hence making it easy to locate files you need afterwards.

  4) Select chip manufacturer, in our…