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This instructable describes a project named Duinocade, a mini pong arcade game based on the open source handheld Gamebunio, and which uses Atmega328 as the controller and Nokia 5510 LCD for display screen.
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Jason Hamilton has built this Arduino-based RFID access control to open his garage door using RFID. The project has a master RFID key hard-coded into the Arduino firmware, which allows you to add other keys to the system. The new keys are all stored into the EEPROM memory of Arduino.
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This Arduino-based wireless thermometer uses two Arduino boards to measure indoor and outdoor temperatures. The outdoor Arduino board sends out the outdoor temperature measured by DS18B20 sensor to the indoor Arduino board using inexpensive 433MHz RF transmitter and receiver modules. The indoor Arduino board then displays the indoor and outdoor temperatures on a character LCD display.
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A group of students at Indiana university has built an Arduino-based distance measuring tool as their class project. It is a handheld device that measures the distance between any two points using the latitude and longitude coordinates (received from GPS satellite) of the points. It provides distance output in Yards and is useful for sports applications, such as in golfing to compute the distance between where a ball is hit and where it ends up.
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If your job involves sitting in front of a computer for long hours everyday, a poor posture might result in neck, shoulder, and back pain. Sitting up straight helps to get rid of some of these problems. This ATtiny85 based posture sensor uses the HC-SR04 ultrasonic ranging module to sense the position of your head while you are sitting on a chair, and generates an acoustic alarm if you are not sitting up straight. [via]
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