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MCM Electronics Daily Deal and Bulk Bargain

Raspberrypotter

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."

LED Color Lamp

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."

LED Open Sign

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."

RGB LED Ceiling Display

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."

ASCII-ART Arduino Pinouts

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."

Building the Blinky POV

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!"

Christmas Tree Ornament

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."

38mm x 38mm Laser Engraver

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."

A Classroom-Constructable CD Sculpture

Posted April 16, 2015 by Chris

"At the invitation of Prof. Susan Gerofsky, I visited The University of British Columbia (UBC) as artist-in-residence for a week during January 2007. The agreed-upon project was for me to develop a mathematical sculpture that can be replicated in classrooms. I worked with Susan, student teachers in UBC’s education program, and visiting students from Vancouver-area schools to test the ideas and write up a lesson plan."

Piccolo, the tiny CNC-bot

Posted January 19, 2015 by Chris

"Piccolo is a low-cost kitset device that uses servos to create a mechanism for tinkering with or developing for basic 2D or 3D CNC output. Applications range from simple drawings, generative designs and data visualations, to small scale laser cutting or 3d printing, depending on the tool head used. Piccolo’s small size, low power and low cost makes it easy to use in almost any environment and in multiples."