microcontroller
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0-25V Digital Voltmeter using AVR Microcontroller In this project we are going to design a 25V range digital voltmeter by using ATMEGA32A microcontroller. In ATMEGA, we are going to use 10bit ADC (Analog to Digital Converter) to build a digital voltmeter. Now the ADC in ATMEGA can not take a input more than +5V, so for getting a higher range we are going to use a voltage divider circuit. … |
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RFID Based Voting Machine We know in offices, shopping malls and in many other places where only the person with authorization card is allowed to enter the room. These systems use RFID communication system. RFID is used in shopping malls to stop theft as the products are tagged with RFID chip and when a person leaves the building with the RFID chip an alarm is raised automatically. The RFID… |
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Getting Started with 8051 Microcontroller If you are looking for a beginners guide on “How to start with 8051 Microcontroller”, here in this article I will show you how to work with 8051 microcontroller practically. I am not going into detail of “What is 8051 microcontroller”, or “How to write a c-program” etc., but the scope of this article is to tell about the hardware and software which are needed to… |
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Temperature Measurement using LM35 and AVR Microcontroller In this project we are going to design a circuit for measuring temperature. This circuit is developed using “LM35”, a linear voltage sensor. Temperature is usually measured in “Centigrade” or “Faraheite”. “LM35” sensor provides output based on scale of centigrade. LM35 is three pin transistor like device. It has VCC, GND and OUTPUT. This sensor… |
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0-99 Counter using AVR Microcontroller In this tutorial we are going to design a 0-99 counter by interfacing two seven segment displays to ATMEGA32A Microcontroller. Here we count events based on number of times button is pressed. Before moving ahead, let's understand what is a seven segment display. A seven segment display got its name from the very fact that it has seven… |
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RFID Based Toll Collection System We know in offices, shopping malls and in many other places where only the person with authorization card is allowed to enter the room. These systems use RFID communication system. RFID is used in shopping malls to stop theft as the products are tagged with RFID chip and when a person leaves the building with the RFID chip an alarm is raised automatically. The RFID… |
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LCD Interfacing with 8051 Microcontroller The interfacing of a 16x2 LCD display with 8051 microcontroller is very popular and one of the most important in embedded systems programming. This tutorial will explain the complete LCD interfacing of 8051 C program, circuit connections, and coding strategies in a program with the use of the AT89S52 microcontroller. The display units are the most important output devices in embedded… |
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What is a Microcontroller? Microcontrollers are integral part of embedded systems. A microcontroller is basically cheap and small computer on a single chip that comprises a processor, a small memory, and programmable input-output peripherals. They are meant to be used in automatically controlled products and devices to perform predefined and pre-programmed tasks. To get a better idea of what… |
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LED Interfacing with 8051 Microcontroller LED interfacing is the first thing one would try to do while getting started with any microcontroller. So here in this tutorial, we are going to interface an LED with an 8051 microcontroller, and we will write a C Program to blink the LED. We have used a very popular microcontroller, AT89S52, of the 8051 family, by ATMEL. LED interfacing with 8051 microcontroller… |
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AVR Microcontroller Based Electronic Voting Machine Project Whenever we go to vote for elections we come to see electronic voting machines. In this project we are going to design and develop a simple voting machine by using ATmega32A microcontroller. Although we can use the controller to get more than 32 people voting machine, to keep everything simple we are going to make a voting system for a size of four people.We will… |
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What is the difference between microprocessor and microcontroller?
For beginners, who are just getting started with electronics, oftentimes it might be confusing to compare microprocessor and microcontroller. But both microprocessor and a microcontrollers are entirely different from one another in terms of hardware architecture and working. The primary difference between a microprocessor… |
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Interfacing LCD with ATmega32 Microcontroller To establish a good communication between human world and machine world, display units play an important role. And so they are an important part of embedded systems. Display units - big or small, work on the same basic principle. Besides complex display units like graphic displays and 3D dispays, one must know working with simple displays like 16x1 and 16x2 units.… |
