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Dual-Channel Mobile Surface Electromyograph Using Atmega644

Introduction For our final project, we built a surface electromyograph to collect and analyze data on muscle activity, which supports two channels, implements wireless transmission, and can be worn as mobile unit. Surface electromyography (EMG) is a noninvasive technique to record the activation signals of muscles when they are mechanically active. This signal is very small compared to the 60 Hz signal whic ...

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Analog Modem Design Project

Introduction: We thought it would be interesting to try and construct a simple modem out of the ATMEL 8535. The main motivation for doing this was to test some DSP theories about the effects of transmission power, noise, and modulation technique on the bit error rate. Initially, we wanted to connect our modem to the public telephone network; however, the voltage, current, and bandwidth constraints over a ph ...

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Flickr images on a Nokia LCD using ATmega48

LCDs are often used in microcontroller projects. Most used are these green character displays with two or more rows to display menus, status or debug messages. With mass production of mobile phones, color LCDs get that cheap, that they can be used as replacement. Some time ago I ordered a Nokia 6100 LCD including breakout board from Sparkfun. To test the display, I hacked a kind of small digital picture fra ...

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GSM Remote Control – GSM Module

This GSM Mobile is used for our Remote Control (for example Gate Control, Temperature Control….). We use the word ‘module’ because, unlike what we did in our remote control projects, this time around the mobile phone is not mounted on a printed board, but rather on a small auxiliary board which is then inserted in a connector specifically created on the main printed board; though this alternative may seem r ...

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AvrPhone using ATmega128 microcontroller

AvrPhone is a simple mobile phone with touchscreen. His brain is AVR ATmega128 microcontroller (128 kB flash, 4 kB SRAM) and user interface, the 2.4 "LCD display with touch foil and ILI9325B controller, equipped with a 16-bit bus. The communication with the old GSM module SIM100Sčísnkého SIMCom manufacturer. The entire system is powered by a 3.7 V/1000 mAh Li-Pol article. This page is intended to present th ...

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DIY mobile phone – Create your own mobile phone

This DIY cell phone created at MIT manages to have something for just about every major contemporary subculture or hipster subset I can think of. Nerds and tinkerers? Check. Wooden case for the steampunk set? Check. Huge antenna for the retro, skinny-jeans-wearing set? Check. Big buttons for the fat-thumbed and Luddite crowd? Check. Rugged design for outdoorsy types? Check. The folks at the MIT Media Lab cr ...

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Cellphone Operated Robot using ATmega16 AVR microcontroller

This Instructible is entered in the Category: 13 - 18 of the National Robotics Week Robot Contest MY URL-http://avadhutelectronics.blogspot.com/ MY [email protected]   Video :Cellphone Operated Robot Step 1 Component Required   Component Required: IC1 - MT8870 DTMF decoder IC2 - ATmega16 AVR microcontroller IC3 - L293D motor driver IC4 - 74LS04 NOT gate D1 - 1N4007 rectifier diode R ...

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