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How to interface serial ADC0831 with AVR microcontroller (ATmega16)

ADC is an electronics device that converts the analog signals to digital number proportional to the magnitude of voltage. The ADC chips like ADC0804, ADC0809 etc., give 8-bit digital output. The controller device needs eight pins to receive the 8-bit data (For more details about ADC refer to Using Inbuilt ADC of AVR). Some applications need higher resolution ADCs, (10 or higher bits digital data output) for ...

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How to Use SPM for Flash to Flash Programming

The Self Programming Mode (SPM) is a feature which enables a microcontroller to program its own flash memory. Using the SPM a microcontroller can program itself with an SPM code. The SPM is commonly used with the microcontroller Boot-Loader codes which help to program the microcontroller serially. In AVR microcontroller the SPM is available only for the code running in the BLS of the flash memory. With the ...

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Interfacing GY 26 with atmega640

Hello friend once again with new instructable in this I will show you how to interface GY 26 with UART when I started working on this very less resource where availble over internet .Thus i thought to share my piece of work .GY 26 is a digital compass which gives angle with respect to earth north .it can be used for robot orientation and position aero model position and so on. GY26 uses UART or IIC for comm ...

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Infrared Theremin Using Atmega1284

Introduction A modern-day twist on the classic theremin musical instrument. This project uses two IR sensors and the ATMEGA1284P microcontroller to create an inexepensive, easy-to-use theremin. The theremin is a musical instrument which is controlled by the electromagnetic field your body body produces naturally. One hand is used to control the volume of the instrument, and the other hand controls the pitch ...

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NFC Transmitter and Receiver Using Atmega1284

Introduction Our project is building one set of NFC module including a NFC transmitter and a NFC receiver both using ATmega1284p microcontroller. We will be using coupled coils to transmit message modulated by a high frequency carrier, whose frequency is the standard frequency for Near Field Communication (NFC) – 13.56MHz (Wikipedia, 2013). In our project, we build a local oscillator which generates the acc ...

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The Air Mouse Using Atmega1284

Introduction "A wireless mouse unit that requires no flat surface by using ultrasonic positioning." For our ECE 4760 final project,we have designed a surface-less mouse interface using ultrasonic transmission as our final project in this class. The idea is to have a ultrasonic transmitter as a mouse, which represents  the mouse’s position in space, with the left, right clicks functionsaccomplished using tou ...

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Brain-Computer Interface Using Atmega644

Introduction Our goal was to build a brain-computer interface using an AVR microcontroller. We decided that the least invasive way of measuring brain waves would be using electroencephalography (EEG) to record microvolt-range potential differences across locations on the user's scalp. In order to accomplish this, we constructed a two-stage amplification and filtering circuit. Moreover, we used the built-in ...

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