I like this idea and think my grandson and granddaughter would like it, too. They're too young to have a cell phone, but we have lots of CDs around. Worth looking into, as long as I can buy some of the EL "wire."
I just checked for EL-wire suppliers and found many on Amazon that sell this product in a variety of colors and lengths for less than $10. Some of the packages include a power supply that takes AA or AAA batteries. Heck, I might even get some for my lab. Search Amazon for "electroluminescent wire," but without the quotes. Happy shopping.
I saw that, too, Jon, where Google points to places you can get incredibly inexpensive EL panels. It made me vaguely recall when EL panels were a big deal in the early 1970s, in Popular Electronics. That's what I thought and when I did a search, it turns out I was correct. Here's a 1984 EL panel patent, which references a 1971 Popular Electronics article on an El Panel Driver.
Interesting, Alex. I think GE produced EL night lights back in the '70's and they glued a penny to each cardboard package, because the company claimed it would only cost one cent to run the nightlight for a year. I haven't seen those night lights in years. The ones on the market now probably use LEDs. At night there's enough light from LEDs and vacuum fluorescent displays in our kitchen, family room, and bedrooms to make navigating easy. I wonder how much electricity these always-on displays and indicators waste.
There are people like me who love the peace and quiet. Maybe I could enjoy sounds without having them destroy my peace and quiet. You've got the beat and volume showing, now flash in the words with the proper "tone" showing. Then "sparkle" in some over/under tones. Interesting.
Festo's BionicKangaroo combines pneumatic and electrical drive technology, plus very precise controls and condition monitoring. Like a real kangaroo, the BionicKangaroo robot harvests the kinetic energy of each takeoff and immediately uses it to power the next jump.
Design News and Digi-Key presents: Creating & Testing Your First RTOS Application Using MQX, a crash course that will look at defining a project, selecting a target processor, blocking code, defining tasks, completing code, and debugging.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.