Posted June 8, 2014 by Chris

"Here is my project on interfacing of SD Card. microSD cards are available very cheap nowadays, a great option for having a huge memory in any embedded system project. It is compatible with SPI bus, so the interfacing is easy. SD card adapters are also easily available in market, one can easily make a bread-board adapter by soldering few pins on it."

Posted June 7, 2014 by Chris

"The Strophonion is an electronic instrument which was developed and built by STEIM from 2010 until 2011. It belongs to the instrument group, that is usually subsumed under the term live-electronics using gestural controllers. The following blog gives an insight into the entire process of developing and building the Strophonion from the beginning."

Posted June 6, 2014 by Chris

"While many POV projects have been designed before, they tend to be very static. Often they only display one image or animation and usually have no interactivity. We set out to make a very modular multipurpose design. Our original goal was to make two different LED arrays, a 2D version with RGB LEDs and a 3D version that uses monochrome LEDs."

Posted June 5, 2014 by Chris

"Build this single-sided Xilinx CPLD board at home and experiment with CPLDs and hardware description language (HDL). The source files for the project are in open source KiCad format so you can modify the circuit diagram and PCB if needed."

Posted June 4, 2014 by Chris

"They are so dang cute. If you have ever seen the cool promo for the Necomimi Neurowear wearable set of cat ears that respond to brainwaves, you would want a set too. But it seems they may be vaporware since it hasn’t materialized on the market yet, not that I would be able to afford them though. Necomimi or nekomimi is Japanese for ‘cat ears’."

Posted June 3, 2014 by Chris

"This project is based on ideas from Rickard’s electronic projects page and David B. Thomas VCR Pong. However, I have developed the simplicity even further, eliminating most of the external components. Using microcontrollers with internal 4MHz clock generator there is no need for the xtal. The 12f675 part also operates on wide voltage range, and the regulator can be removed."

Posted June 2, 2014 by Chris

"Continuing my previous post about DIY constant current boost driver for 9 LEDs in series, here is a mod for my burned out desk lamp. I’ve designed new schematics with 4 mosfets in parallel, because this is only mosfets I had on hands and they are pretty low power with high Rdson. So I decided to use as many as I can."

Posted June 1, 2014 by Chris

"In this project, we look at how we can implement a Digital 2.4km Run Announcement System. The system is capable of displaying the time on the LED display once the start button is pressed. At the same time, the infrared interceptor is started, and is continuously checking if its infrared ray is intercepted, and if so, trigger the system to announce the time of interception to the runners, and make a log of the time of interception to the system."

Posted May 30, 2014 by Chris

"This is first in series of articles about project I’ve been building in my spare time since last Summer. Actually it all began when I was researching a topic of modeling human motion kinematics in order to create gesture recognition library for Kinect. This ties heavily into motion theory of robotic manipulators so I also glanced at some designs of robotic arms."

Posted May 29, 2014 by Chris

"A Plasma Sonic Speaker is basically an arc between two point (or in free space aka Tesla Coil) that emits sound. This I believe was discovered when experimenters started trying to transmit audio via Amplitude Modulated Radio Signals using high voltage coils and spark gaps."