AVR ATmega Projects

AVR Security Keypad Lock using ATtiny2313 microcontroller

The Security Keypad Lock Project is a basic access control system based on ATtiny2313. It can be modified to protect just about anything. The “Code Lock” ability will allow the rightful user to deploy the platform to any property that requires simple password-protection. The “AVR” RISC microcontroller used ensures low costs. Possible applications may include: […]

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Speaking Calculator using AVR ATmega88 microcontroller

Speaking Calculator using AVR ATmega88 microcontroller

This Speaking Calculator project is an interesting device built just by three chips that can be very useful to blind people. The system has four basic operations (addition, subtraction, multiplication and division), and the functions: clear all, change of sign (+/-), inverse (1/x), square root (v), pi number (p), add with memory (M+) and read

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Handy Password Managing System, Lord of the Keys using AVR ATmega168

The Lord of the Keys is password managing system that able to store many usernames and passwords inside a Java Cardℱ smart card (one of the most secure methods to store confidential information). Whenever a dialog box appears in an application or web browser requesting a username and password. These security features can be found

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AVR Ultrasonic Spheroid Levitation Device using ATMega16 microcontroller

Introduction The goal of this project was to design and build a gaming device capable of levitating a ping pong ball at varying heights based on the proximity of the user to the device, utilizing a multi-tasking kernel on the ATMega16 platform. The project incorporates a fairly complex mechanical system and utilizes many features of

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AVR Based Mobile Phone using AVR ATmega128A microcontroller

AvrPhone is ATmega128A-based simple mobile phone with touch screen and SIM100S GSM module. The display uses 2,4″ LCD with a resistive touch screen and ILI9325B driver (16 bit parallel bus). The LCD breakout board contains SD card slot and XPT2046 touchscreen controller. They both are connected to AVR’s SPI bus. The project is powered by

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AVR Wide Range LCF ESR Meter using AVR ATMega88PA PU microcontroller

AVR Wide Range LC,F, ESR Meter using AVR ATMega88PA-PU microcontroller

LCFesR meter is a precise, wide range meter that can measure inductivity (L), capacity (C), frequency (F) and equivalent series resistance of a capacitor in-circuit (ESR) based on AVR ATMega88PA-PU microcontroller. It can be easily built with homemade one or double-faced PCB and available electronic components. dr. Le Hung, project designer, explained that measurement of

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AVR Touchpad Handwriting Recognition using ATmega644 microcontroller

This ATmega644-based project implements a touchpad input system which takes user handwriting input and converts it to a printed character. Currently, the device only recognizes the 26 letters of the alphabet, but it could be easily generalized to include any figure of completely arbitrary shape, including alphanumeric, punctuation, and other symbols using available training system.

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