AVR ATmega Projects

AVR Power Usage Logger using ATmega168 microcontroller

This ATmega168-based project monitors household power usage and logs it to an SD card. Signals from voltage and current detectors amplified LMC6484AIN quad op-amp and then AVR microcontroller computes the power consumption using the formula P=VxI. The voltage and current are each sampled at 9615 Hz so the integration should be fairly accurate even for […]

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Energy Monitoring Transmitter using Atmega328 microcontroller

This energy monitoring transmitter, known as emonTx, is an Atmega328-based small wireless energy monitoring node. It also fully compatible with Arduino IDE. EmonTx is designed to take inputs from multiple CT sensors, optically from a pulse-output utility meter and from multiple one-wire temperature sensors. The design is based on the JeeNodeV5 by Jean-Claude Wippler and

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Wireless Human Health Monitor using ATmega644 microcontroller

The aim of this ATmega644-based project is to build a portable device implementing wireless technology and taking full advantage of the wide-spreading Internet to provide a convenient solution to monitor human health. The health information acquired on the portable side transmits to the server wirelessly and can be accessed all over the Internet in real-time.

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AVR Digital Hum Nuller using ATmega168 microcontroller

This ATmega168-based digital comb filter built to clean a realtime audio signal. It can remove the ubiquitous 60Hz (50Hz in some countries) hum noise caused by power lines and household electrical wiring. Since the noise is not strictly sinusoidal it is necessary to remove all harmonics of 60Hz, and that is what this filter does.

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DC Servomotor Controller System Meter using ATtiny2313 microcontroller

DC Servomotor Controller System Meter using ATtiny2313 microcontroller

The ATtiny2313-based project is an experiment on the closed loop DC servomotor control system (SMC) by Elm Chan. It can be used for practical use with/without some modifications. The closed loop servo mechanism requires real-time servo operations, such as position control, velocity control and torque control. It will be suitable for implementation to any embedded

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Low Picofarad Capacitance Meter ATtiny2313 microcontroller

Low Picofarad Capacitance Meter ATtiny2313 microcontroller

This little instrument, named as Pico C, can be used to measure capacitances down to fractions of a picofarad. It built based on ATtiny2313 microcontroller. It has range: <1 pF to 2000 pF (guaranteed); 2500 pF possible and resolution: 0.1 pF. To read the result, this low cost C meter comes with 2 lines LCD.

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Ear Trainer using ATMega644 microcontroller

The goal of project is to helps people develop the musical skills of perfect pitch and relative pitch. Push buttons allow the user to navigate a graphical user interface (GUI) on a liquid crystal display (LCD). In perfect pitch training mode, a note is played and the user tries to identify the note on an

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AVR Data Logger with MicroSD using ATmega32 microcontroller

This project shows you how to store data into microSD card in files with FAT32 format using microcontroller AVR ATmega32. The MCU receives sensor’s data through internal ADC. You can connect up to 8 different sensors to the system. In this project, Dharmani uses one channel to read temperature value from LM35 sensor and remain

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Electric Spinning Wheel using ATmega8 microcontroller

The Electric Eel Wheel is a smart electric spinning wheel which helps you spinning the fiber of your choice into yarn easily instead of traditional wheel. This Electric spinner is lighter and smaller, making it easier to take your spinning with you. You can control spinning speed and its direction, forward or reverse. The electronics

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