301 Moved Permanently

Posted April 17, 2012 by Chris

“Our project is a velocity sensitive hardware based piano. We simulated two strings per note using a Karplus Strong algorithm written in Verilog, and coupled it with a Casio electric piano keyboard fitted with custom switches to act as a user interface. On an Altera DE2 board we built a hardware Karplus-Strong synthesizer to simulate a piano key with two strings, along with a hardware timer. The timer was used to determine the key push’s velocity, which in turn affected the volume level of the synthesized sound.”

Posted April 16, 2012 by Chris

“I built a pair of flex sensor gloves for capturing the motion of all ten fingers. This system uses individual flex sensors made by Spectra Symbol and a National Instruments analog capture device to record the flex sensors’ values.”

Posted April 15, 2012 by Chris

“In this blog I will teach you step by step how to build your very own burning laser. Unlike other popular ways of building your own burning laser I will show you how to do it properly to ensure a long and healthy life for your new laser.”

Posted April 14, 2012 by Chris

“We recently got chickens and found them to be noisy in the morning because they wanted to be let out of their coop. Of course, we just wanted to sleep in. What we needed was an automatic door opener. There are some (expensive) automatic chicken doors that are available for purchase, but I decided to design and make my own. You are welcome to copy or adapt the design to suit your own requirements.”

Posted April 13, 2012 by Chris

“This how-to takes you through all the steps of making your own arduino on a perfboard or perfduino! Arduino microcontrollers are great for learning about physical computing and are very useful for rapid prototyping. Arduino’s simple programming language makes it a favorite of hobbyists and diy-ers around the world. Because arduino boards range in price from 30 to 70 dollars, it can be very cost effective to make your own.”

Posted April 12, 2012 by Chris

“Standard DC motor control can be tricky enough if you are new to electronics, but how about wireless dual dc motor control? A while ago I introduced you to a simple dual dc motor control design that used the SN754410NE IC to control some off-the-shelf 3v or 6v motors. Let’s take a look beyond just motor control and see if we can’t make that same system wirelessly controlled.”

Posted April 11, 2012 by Chris

“The purpose of the Hackvision is to allow the user to create retro-style arcade games and so on that can be played on a monitor or television set with analogue video input. Although the display resolution is only 128 by 96 pixels, this is enough to get some interesting action happening. Frankly I didn’t think the Arduino hardware environment alone was capable of this, so the Hackvision was a pleasant surprise.”

Posted April 10, 2012 by Chris

“After some testing, I attached the WiShield WiFi module from Asynclabs, and then I started programming a socket application for the Arduino. I thought it would be fastest and easiest to use the TCP protocol directly, than serving a webpage. After some tests with Hercules SETUP Utility I made myself a controller application in Visual Basic .NET – and off we go!”

Posted April 9, 2012 by Chris

“This article is about a Tetris game I created with an AtMega32 controlling the beam of an oscilloscope, which I very creatively named Scopetris.”

Posted April 8, 2012 by Chris

“Most of it is inside the AT90S2313 microcontroller. The black pipe makes Dizzy’s eye directional, so he can look for light and dark areas as well as motion – which he sees as rapid small changes in light level. The black paper hood does the same for his modulated IR receiver, allowing him to find his dining area.”