Bluetooth Home Automation using AVR and Android App

jojo July 13, 2017 1 Comment

DIY-Bluetooth based Home Automation Project In this project, let’s see how to design a Bluetooth based home automation project.This article explains the steps involved in the designing of a Bluetooth home automation kit, starting from the configuration of a...
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How to Use ADC (Analog to Digital Converter) in AVR – Atmega32

jojo May 19, 2017 1 Comment

Using LM35 Sensor and Atmega32 ADC to measure Temperature Analog to digital conversion is generally needed whenever we deal with a sensor that produces an analog output (for example: LM35 temperature sensor), which is the case for a wide...
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Interface 7 Segment Display to AVR Atmega32 using CD4511B

jojo April 5, 2017 2 Comments

Seven Segment Display operation using Atmega32 and CD4511B Seven segment display is a frequently used device found in several applications such as queuing systems, some types of clocks and calculators. So in this article, we explain how to Interface...
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DC Motor Speed Control using PWM in AVR Atmega32

jojo March 24, 2017 No Comments

How to control DC motor speed using PWM on Atmega32 Using PWM (Pulse Width Modulation) to control a device is a common practice in embedded systems; for example, you can use it to control the light intensity of a...
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How to Interface an External EEPROM with AVR Atmega32

jojo March 13, 2017 No Comments

In this article, we will explain how to communicate to an external EEPROM from the AVR Atmega32 MCU using the I2C communication protocol. So let’s begin our tutorial on how to interface an EEPROM (AT24C16A) with AVR Atmega32. You...
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AVR Microcontroller Tutorial – The complete guide to learn AVR

jojo September 29, 2012 5 Comments

We have developed a complete guide to learn AVR microcontroller – a tutorial which teaches the architecture,pin diagram,how to program an avr micro controller, how to work with ADC of avr, how to work with SPI of avr,interfacing LCD...
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How to work with the ADC unit of an AVR Micro-controller

Mathew Kevin July 9, 2017 3 Comments

Introduction                 The first step to digital signal processing is to convert a signal into digital data, and here the Analog to Digital Converter devices comes into action. Some of the AVR micro controllers include ADC unit in their...
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Working with External Interrupts in AVR micro controller

Mathew Kevin July 10, 2017 3 Comments

Introduction to Interrupts                 Although micro controllers can accept inputs from Digital I/O Ports,interrupts are preferred for accepting inputs generated by external events. This is mainly because of the less attention required for an interrupt based program. An Interrupt...
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How to Establish A PC-Micro controller USART communication

Mathew Kevin July 10, 2017 8 Comments

 Introduction USART is one of the primitive inter-device communication protocols. It is not used in modern computers. But still, a few mother boards come with the module necessary for an USART communication. Here, in the case of PCs, the...
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How to Work With SPI in AVR Micro Controllers

Mathew Kevin July 10, 2017 12 Comments

Introduction                 Micro controllers support wired communication protocols. Most of the time, microcontrollers come along with internal modules that support these protocols. The commonly supported protocols are: UART or USART communication SPI TWI USI etc. And few advanced protocols...
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