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Blinking LED using Atmega32 Microcontroller and Atmel Studio

Similar to printing ‘Hello World’ in C or C++, the very first step towards programming a microcontroller is Blinking a LED with a delay. Atmega32 is a very popular high performance 8 bit AVR Microcontroller. For this example project we need to use two registers DDR and PORT. DDR stands for Data Direction Register, it determines the direction (Input/Output) of each pins on the microcontroller. HIGH at DDR re ...

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Analog to Digital Converter of ATmega32 with LED Display

Microcontrollers are capable of detecting binary signals: is the button pressed or not? These are digital signals. When a microcontroller is powered from five volt, it understands zero volts (0V) as a binary 0 and five volts (5V) as a binary 1. But the real world is not so simple and likes to use shades of gray. What if the signal is 2.72V? Is that a zero or a one? We often need to measure signals that vary ...

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4X4 Keypad Interfacing with ATmega32 and LED Display

Keypads are parts of HMI or Human Machine Interface and play really important role in a small embedded system where human interaction or human input is needed. Matrix keypads are well known for their simple architecture and ease of interfacing. In this project, we will learn How to interface a 4X4 keypad with AVR ATmega32 microcontroller. Here, we will display the value of the pressed key in a 1X8 LED array ...

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4X4 Keypad based Password with ATmega16 and LED Display

Security is a prime concern in our day-today life. Everyone wants to be as much secured as possible. Keypad based password is one of the many method and the most common and easy one to provide security to any system. In this project, we will learn How to design a password protected system using a 4X4 keypad with AVR ATmega16 microcontroller. Here, the user will enter a 4 digit numeric password to gain acces ...

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LM35 Temperature Sensor Interfacing with ATmega32 and LED Display

LM35 series is a low cost and precision Integrated Circuit Temperature Sensor whose output voltage is proportional to Centigrade temperature scale. Thus LM35 has an advantage over other temperature sensors calibrated in Kelvin as the users don’t require subtraction of large constant voltage to obtain the required Centigrade temperature. It doesn’t requires any external calibration. It is produced by Nationa ...

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Atmega 32u4 Based LED Status

In the Atmega 32u4 Based USB Controlled LED Series Project, it was demonstrated how to use control transfer to receive data from computer to the peripheral. In this project, it will be demonstrated to transfer data from microcontroller to the host computer. For this, the device will be configured as HID Class Device again. An HID Class device has USB communication over two types of transfers - Control trans ...

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Atmega 32u4 Based USB Controlled LED Series

Throughout this USB series, different types of USB devices have been designed and developed. These devices were enumerating with the host computer and then were using Class Specific transfers for further USB communication. Like the Keyboard, Mouse and joystick devices were using interrupt transfers for their operations after enumeration. Similarly, the audio class devices were using isochronous transfers fo ...

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