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Proximity sensor using PIR sensor+theory
posted February 9 2011 19:37.56 by Giorgos Lazaridis




Jeri (with an I) is back with a new amazing video. This time, she was asked to design a circuit to trigger "artistic" events, when someone approaches. The device had to be...

[Link: jeriellsworth]
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Tags: electronic project   diy   physics   pir   sensors   proximity   theory/tutorial   



Digital caliper gets min max and measurement hold features
posted February 6 2011 20:37.28 by Giorgos Lazaridis




Justblair uploaded a new hack. He hacked a digital caliper to add min,max and measurement hold features, with parts that costs less than a dollar. The caliper he used is a simple...

[Link: justblair]
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Tags: crazy hack   electronic project   diy   tools   








IR transceiver measures heart beats from fingertip
posted February 6 2011 19:58.14 by Giorgos Lazaridis




Rajendra tipped us of his latest project, which is really interesting in terms of DIY and science. He made a heart beat meter, which counts your heart beats from the from the...

[Link: embedded-lab]
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Tags: electronic project   physics   diy   microcontroller   pic   sensors   health & nature   biotechnology   



Demo of the FreeFlight IMU
posted February 6 2011 19:43.45 by Giorgos Lazaridis




Jussi Hermansen informed us of a new video that he uploaded. This is a demonstration of the FreeFlight IMU V1.1, an open source i2c 9DOF with Pressure sensor. On-board is an ITG3200...

[Link: 420RcPilot]
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Tags: electronic project   robot   diy   rc servo   microcontroller   pic   remote control (RC)   wireless   accelerometer   commercial   sensors   gyro   pressure   magnetometer   



DIY screenprinting - Even a kid can do it
posted February 5 2011 8:56.36 by Giorgos Lazaridis




Screenprinting is a fascinating technique for printing artwork on clothes, project boxes and other materials. I really did not know how to do it, and i thought that it required...

[Link: make]
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Tags: chemistry   diy   games and fun   artistic   tips   theory/tutorial   








Ping-Pong wall clock looks great
posted February 3 2011 8:17.47 by Giorgos Lazaridis




Last year, we featured a wall monitor made of ping-pong balls cut in half. It was an awesome hack and a great idea. Ping-pong balls were cut in half to perform diffusers for the...

[Link: hackaday]
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Tags: crazy hack   electronic project   clock   diy   microcontroller   avr   



PIC - Digital Tachometer/RPM Counter
posted January 27 2011 19:49.43 by Giorgos Lazaridis




Chris from pyroelectro send us his latest project. Based on the PIC 18F452, he made a tachometer and RPM counter. An IR transmitter/receiver pair is connected to the microcontroller...

[Link: pyroelectro]
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Tags: electronic project   lcd   diy   microcontroller   pic   



The EGO BOX, a physical website visits display
posted January 24 2011 21:24.24 by Giorgos Lazaridis




Everyone that owns a website wants to know the number of visitors. Usually, people put counter scripts or subscribe to a service like analytics, but Bogdan from electrobob had...

[Link: electrobob]
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Tags: internet related   avr   monitor   7-seg led   ethernet   microcontroller   diy   electronic project   








Open sesame - Motorized curtains
posted January 19 2011 7:44.57 by Giorgos Lazaridis




Simeon Kuninski [electronics-lab] made a system to automatically open and close the curtains. He also added an IR receiver to remote-control it. The system is based on the ATMEGA328...

[Link: electronics-lab]
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Tags: crazy hack   electronic project   diy   microcontroller   arduino   wireless   mechanical   

















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