Posted August 17, 2014 by Chris

"This project is based on Arduino Nano board that communicates with PC using serial protocol. Arduino Nano contains RS232 – USB converter, so the actual connection between the board and PC is made using standard USB mini cable. Stepper motor is controller using four data lines of Arduino board. These lines cannot control stepper motor directly. An additional stepper motor driver must be used."

Posted August 15, 2014 by Chris

"The Braille-O-Matic is a device that allows the blind and visually impaired to read digital text by generating Braille characters at the pace at which Braille is read. It is a rotating system that simulates the natural act of reading Braille by having the dynamically generated Braille characters roll across the user’s fingertips."

Posted August 10, 2014 by Chris

"It’s been an awesome project to do, and I would do it again in a heartbeat. I’ve still got some tidying up with cable routing, etc, but it has had it’s first run with a pen zip-tied to the Z-axis. The results are pretty good, and the accuracy is nice to see."

Posted July 19, 2014 by Chris

"I spent my evenings over Memorial Day weekend working on a customized fixture designed to make programming and testing the electronics of our Question Block Lamp really easy. As part of our plan to bring the lamps back into production, we decided that a custom programming fixture would go a long way towards helping our outsourcing partner get exactly what we want quickly and without the difficulty of communication."

Posted July 5, 2014 by Chris

"Each anchor is connected to a motorshield via Ethernet cables and the shield is mounted to an Arduino. I located a copy of the firmware on Github and started editing it with AVR Studio. Once I implemented the necessary geometry modifications, I used a program called XLoader to flash the new firmware over to the Atmel chip."

Posted July 2, 2014 by Chris

"The MiniPOV uses only a single PIC16F630 while the spoke uses an Amtel micro-controller, an EEPROM, and several 74×259 8-bit latches. I wanted to enhance the MiniPOV to display text on both sides of the bike wheel. I chose to use Microchip’s PIC because they sold a cheap programmer.."

Posted June 11, 2014 by Chris

"Made some great progress on my PCB CNC mill in the past week. For our new readers: I built a machine, that manipulates copper-covered board under a Dremel rotary cutting tool to carve out electronic circuit boards to support our rapid prototyping capabilities. "

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 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 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."