Posted May 24, 2018 by Chris

"AVR Mask1 is a led mask built around 74hc595 shift register and 8×8 led matrix.It has 4 8×8 led matrix, 2 for the mouth, and 2 for eyes. When the user get closer to the mask, the IR sensor placed on the back activate the mask."

Posted May 5, 2018 by Chris

"As part of an graduate-level independent study course I am taking through my university’s Art department, I will creating a polargraph drawing machine and installing it in a public hallway for public viewing."

Posted May 6, 2017 by Chris

"Raspberry Potter is an open source project that lets you control things around your room or your house with a magic wand. Imagine if you had a magic wand to control everyday things. Once you make a Raspberry Potter, you’ll be able to do just that – by drawing simple gestures in the air."

Posted April 15, 2017 by Chris

"Here is a new version of the classic color organ, where different color lights are triggered by different frequencies of sound, resulting in a display that flashes along to music. In this case the newer type high intensity LEDs (3000 – 5000mcd) were used along with a very simple discrete transistor drive circuit. The design goals included small size and excellent portability, as well as long battery life."

Posted March 25, 2017 by Chris

"In this open source hardware and firmware project, an LED “Open” sign is built using an ATtiny2313 microcontroller. This is the type of sign that would typically be used in a shop or restaurant to show that it is open for business."

Posted April 1, 2016 by Chris

"When I was measuring out the dimensions of my current home in September 2012, I realized that the main room was 20′ by 32′ and that this would make a nice Tetris playing field if the ceiling were made out of 2′ by 2′ light up tiles. I figured I could use opaque suspended ceiling tiles with a single RGB LED pointing down on to each one. With that thought planted in my head, all I needed was the time to design the electronics and build it."

Posted March 27, 2016 by Chris

"To enable easy documentation of pin assignments, I created a couple of ASCII art arduinos; complete with ports, PWM and coms all marked. Simply paste as a comment into your code and marvel at your new found organisation."

Posted August 26, 2015 by Chris

"Recently we had a chance to build a Blinky POV from Wayne and Lane. Or more accurately I should say she had a chance to build it, since my role was limited to talking her through the steps and taking photos. It’s impressive what an 11-year-old can do with a soldering iron!"

Posted July 22, 2015 by Chris

"This is the Christmas Tree Ornament I made. It’s a custom PCB that I designed in the shape of a Christmas Tree. The little 8 pin black chip you see on the front of the board is an Atmel ATTiny45 Microcontroller. It has 5 IO pins, and there are 20 LEDs on this board. Each LED is individually addressable through a clever trick known as Charlieplexing."

Posted April 22, 2015 by Chris

"To build this tool I’ve used two old CD-ROM writer that lays around in my garage. The X/Y positioning system it is build using the CD-ROM motor assembly. For the engraving laser i use the CD-ROM writer laser. With this hardware the engraving area are will be almost 38mm x 38mm."