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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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4X4 Keypad based Password with ATmega32 and LCD 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 ATmega32 microcontroller. Here, the user will enter a 4 digit numeric password to gain acces ...

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DS1307 RTC based Digital Clock Designing in 12 Hour Format with ATmega32 and 7-Segment Display

A digital clock is a type of clock that displays the time digitally (i.e. in numerals or other symbols), as opposed to an analog clock, where the time is indicated by the positions of rotating hands. The clock/calendar provides seconds, minutes, hours information. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. In this project, we will learn How to design a DS1307 Real Time ...

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Building a Wifi Radio – Part 7, Building an LCD Display

This is the seventh part of an ongoing series about building a low cost, open source streaming internet radio.  If you haven’t already, check out the previous parts (see the links at the end of this article) for some background about the project. In part six, we used OpenWrt’s UNIX-style shell commands to interface with mpd, the music player daemon, and redirect song and stream information to our ASUS WL-52 ...

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LCD Interfacing with AVR

Interfacing LCD Display in 8bit Mode I’ve already discussed about the LCD display in a note here in this website. You can read the Note on character LCD Display here. Now let us come to the interfacing side of LCD. Let us see the 8bit mode interfacing of the LCD display with an AVR micro controller first. I have added two circuits in this post 1) Interfacing LCD with Avr Atmega8 and 2) Interfacing with Atme ...

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