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Bicycleledpov: A bicycle Visual LED Artwork

Posted January 13, 2014 by Chris

"Bicycle LED POV hardware V1.0. The microcontroller unit (MCU) is the Atmel AT90USB162, 8 bits microcontroller with USB functionality. MCU will be able to determine the velocity of the bicycle wheel by reading impulses of the hall effect sensor. Knowing the velocity, MCU will read the images from the DataFlash memory using SPI bus, and in the correct timing will send them to the LED drivers using SPI bus, turning on and off the LEDs."

Programming an ATtiny85

Posted January 12, 2014 by Chris

"I recently decided that I wanted to use an ATtiny85 for a small project I have in mind. So I ordered a couple from DigiKey. Once I got them I realized that I only had a very vague Idea on how to go about programming them. I ended up following instruction from the brilliant people of the High-Low Tech group at MIT."

Keyboard I/O Hack

Posted January 8, 2014 by Chris

"A keyboard hack that supports input as well as output. You find many example of keyboard hacks on the web – basically you take out the PCB of the keyboard an replace the keys with something more interesting…"

Another (Arduino) Audio Spectrum Analyzer

Posted January 6, 2014 by Chris

"My last project is an audio spectrum analyzer. The work has been done using a MSGEQ7 integrated. The result is shown using an 2X16 LCD display. The bars are built using defined characters.
The chip only gives 7 info of frequency. I’ve arrived until the 16 bar interpolating values based in the 7 given."

KPV: A Solar Powered Scooter

Posted January 5, 2014 by Chris

"As far as solar powered vehicles go, the Hybrid Electric Kinetic Photovoltaic Vehicle (KPV) is probably the most innovative and eye catching of the lot. For one, the KPV is extremely portable and can fit in your suitcase. The KPV has a lithe body frame but can function just as well as any solar powered vehicle twice its size."

A Bicycle Computer

Posted January 3, 2014 by Chris

"My first Physical Computing class assignment for this summer was to create a bicycle computer. This is a device that you stick on your bike and it tells you how fast you are going, what your speed is, etc. Following is how I made my own bicycle computer. I used an Arduino to power several features. Data from these features were then displayed on an LCD screen."

PS/2 to C64 Mouse Adapter

Posted January 3, 2014 by Chris

"A pixel artist friend of mine wanted a mouse to try his skills on a real C64. I thought I could help him by making an adapter that would allow a regular PS/2 mouse to be used with a Commodore 64. The most popular and supported C64 mouse is 1351 mouse which uses analog capabilities of joystick control ports to send movement data."

Happy New Year – 2014

Posted January 1, 2014 by Chris

Happy New Year 2014!

Dedicated IR Remote Receiver Board

Posted December 31, 2013 by Chris

"I’ve talked in at least 1 other post about how to use the Infra Red remote control of a toy helicopter for other projects : once the protocol reverse engineered, it’s very easy to program a micro controller to listen to it and I find it very useful to integrate this into any project that needs some wireless remote controlling."

Fast Object Tracking – Robot Computer Vision

Posted December 29, 2013 by Chris

"I wanted my robot to be able to track object and follow them. The first thing I wanted to do is give the robot the ability to follow an object with its head camera. The head camera is mounted on a pan-tilt servo system, and hence is capable of moving left and right, up and down."