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Interfacing 4-wire Resistive Touchscreen with ATMega16 Microcontroller

Touch screens are two dimensional input devices. Nowadays most of the electronic gadgets use them. Laptops, smart phones, tablets and even some home appliances like washing machines & microwave ovens also use a touch screen nowadays. Why Touch screens? Touch screens are preferred over keypads because they need very little or no pressure to operate whereas the Keypads/ buttons need a minimum pressure to ...

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embRACE: The Embedded Race

embRACE, a game developed on the embedded platform, entirely coded in assembly language. The game has been programmed on an ATMega16 micro-controller, interfaced with a 16x2 LCD display module. The game possesses an interactive user interface and exclusive features like: -Main Menu -Pause Menu -Real Time Score display -Life Indicator LEDs -Non-volatile High Score storage The LCD display uses custom LCD char ...

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4 Wire Touch Screen Based Digital Magic Slate

Ever played with magic slates in your childhood? Well this project will show you how to make a digital magic slate using a PC, a touch screen and few other components.   Components Required      1.      4-wire resistive touch screen with connector      2.      ATMega16 development board with 16MHz      3.      4 X 10kohms Resistor      4.      Serial to USB converter or (Serial to RS-232 + RS-232 to USB con ...

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Variable Power Supply with LCD

Are you an electronic hobbyist? Then an adjustable power supply is a must for your various needs. This project explains how to make a LM317 based adjustable power supply unit with a digital display. Components Required 1.     LM317 IC 2.     Resistor – 240 Ohms 3.     Capacitors – 0.1uF, 10uF 4.     Potentiometer – 5k 5.     30V/1A Adapter (or a transformer + Bridge wave rectifier IC) 6.     ATMega16 Develo ...

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Coin Operated Timer Control Power Supply Box to Control AC Appliances

Saving electricity is a major concern for domestic and industrial units. We always try hard to save electricity in many ways to reduce our electricity bills, but due to some known and unforeseen circumstances our efforts do not normally transform in saving electricity. Adding to our woes we may at times forget to switch off electrical gadgets when we are not using them, especially the AC’s, which not only r ...

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Un-interruptible Bench-top DC Power Supply With Display

This tutorial explains how to make your own power supply unit for all your electronics andembedded system experiments. It also has a backup battery which will be used in case of power cuts and a display. Components Required 1.     SLA 12V battery 2.     Banana Jack connectors female (2 pairs each) 3.     Screw Terminals (1 pair) 4.     SPST switch (ratings 5A or more) 5.     Adjustable Voltage Regulator LM3 ...

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Fingerprint Detection using Microcontroller

REQUIREMENTS: AtMega 16 Microcontroller (development board) Fingerprint scanner module (R305) 16X2 Alphanumeric LCD (for user display) DESCRIPTION: In today’s secure world biometric safety is on the top. Unlike other techniques which make use of passwords and numbers, that are needed to be remembered, biometric techniques make use of human body parts like fingerprints or even iris of your eyes and as we kno ...

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