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AVR Microcontroller Projects

AVR microcontroller projects: This section of EG Labs has interesting microcontroller projects based on AVR microcontrollers. These AVR projects can serve as a good reference for final year electronics engineering projects and other hobby purposes.
Latest Projects

This project demonstrates how any device or object can be positioned to desired angle. The circuit presented here demonstrates how to position Stepper Motor at a specific Angle using AVR microcontroller. The desired Angle Position is entered by user and when He presses the button to rotate motor, the motor starts rotating and rotates till it reaches that angle. The angle can be entered in step of 15o between 0o to 360o. User can increment or decrement angle value in step of 15o and set the desire angle. Based on set angle motor rotates forward (CCW) or reverse (CW). Like if current motor angle is 60o and user enters 90o then motor rotates CCW and if user enters 30o motor rotates CW.

The circuit presented here demonstrates how to generate Audible Frequency from an AVR Microcontroller. The output of Microcontroller is always digital so to generate audible sound at the outset first it needs to be converted into Analog. A DAC (Digital to Analog Converter) is used for this purpose. Microcontroller generates sine wave of Audible Frequency using DAC. This sine wave is further given to Audio Amplifier that drives speaker. Microcontroller generates sine wave of fix frequency continuously. So we can hear an audible tone of fix frequency

This project makes use of three out of the eight ADCs present in AtMega16 IC to display the corresponding digital data of X, Y and Z outputs of an accelerometer on 16X2 LCD.

It’s very easy to deal with such kind of modules as they just need the VCC and GND supply to get started, rest it is its job to provide us the analog data.These modules work on simple concept like that of force acting on an object at inclined plane. It deals with the Mg(sin ?) and Mg(cos ?) part of the force and calculate the angle ? for further calculations. Now it also notices the change in force from which acceleration will be calculated.


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