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Grand Prize Winners | Second Prize Winners

Third Prize Winners
Machinist’s TachometerEasy AltimeterPC-based Machinery Vibration Analyzer
WeathermonThe Bit-Banger: USB to I2C bridge I2C-MMI
Stick Shift Auto Racing SimulatorI2C MenuStrobe ClockR/C Radio

Machinist’s Tachometer
Spehro Pefhany
Toronto, Canada
speff@interlog.com

This project is a sophisticated optical tachometer that uses a PhilipsP87LPC764 as the only integrated circuit. Because tachometer signals are relatively low frequency, it uses a reciprocal counting scheme whereby the frequency (and thus rotational speed) is calculated from the time it takes to receive an integral number of input pulse edges. This allows an update rate that usually is in the 2 Hz range with 1 RPM resolution.

COMPLETE ABSTRACT

 

Easy Altimeter
Radek Vaclavik
Roznov Pud Radhostem
radek.vaclavik@onsemi.com

The Easy Altimeter is an inexpensive altimeter project that also includes a thermometer and barometer. The altimeter has a resolution of about 1 m and calculates data faster than most GPS units, making it practical for outdoor hobbies such as hiking or biking. It can store up to 10 hours of data, which then can be downloaded to a PC.

COMPLETE ABSTRACT

PC-based Machinery Vibration Analyzer
Ariel Quezada
Cochabamba, Bolivia
ari_quezada@yahoo.es

Machinery vibration analysis is used to routinely check the health of machinery and also to understand the cause of vibration. Vibration is often a symptom of an internal defect and can be an early predictor of developing defects. This low-cost 51LPC-based data acquisition system can be used with a portable PC to read vibration signals (acquired from an accelerometer). The signals are then plotted, saved, and analyzed using Fast Fourier Transform algorithms.

COMPLETE ABSTRACT

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