How to use Input Output Ports 8051 Microcontroller: LED Blinking Example

input output ports 8051 microcontroller

In this tutorial, we will learn how to use the input and output ports of the 8051 microcontroller. The 8051 microcontroller has 40 pins, comprising four I/O ports. The microcontroller uses 8 pins for specific purposes, while 32 pins are configurable as input and output pins to connect the microcontroller with peripheral devices. Each port … Read more

How to Write First Program in KEIL IDE for 8051

New µVision Project Keil

In this article, we will learn to setup KEIL IDE to program the 8051 microcontroller. Hobbyists and developers use Atmel 8051 microcontrollers in IOT projects. These microcontrollers require KEIL IDE software for their programming. The program can be written in C or assembly language. Now we will discuss how to write the first program in … Read more

EEPROM interfacing with microcontroller

interfacing-i2c-eeprom-to-microcontroller

Recommended Components The following parts and reference books are useful for building and learning 8051 microcontroller projects. Component How it’s used in your 8051 projects Buy on Amazon AT89S52 (8051) microcontroller A modern, in-system-programmable 8051-core MCU that runs the code in these tutorials. Check Price USBasp programmer (ISP) Burns the compiled HEX file into the … Read more

Optocoupler Interfacing with AVR Pic and 8051 Microcontroller

PC817 optocoupler interfacing with pic microcontroller

This article will teach you how to interface a microcontroller with an optocoupler. How can you interface AVR, PIC, and 8051 microcontrollers with an optocoupler? What exactly is an optocoupler? What are the fundamental principles of an optocoupler? Power electronics projects, such as firing angle control circuits and AC power control circuits, often rely on … Read more