Great idea! reminds me of another project that used IR leds behind a blank canvas in an art gallery. When people go to take a picture of "what junk passes for art these days" the secret "painting" is revealed. This is really cool either way, I was just thinking merging the two would be interresting.
Novel use of a LED array. Nice that Allied provided part numbers for the bits they do supply. But it would be useful if the supplier of the non-allied parts were also part of the article. Especially considering that the LED array is fundamental to the gadget.
You know what would be fun? Hang a weight on a rachet (like a pendulum grandfather clock) to spin a motor/generator to provide the electrical energy for this circuit. Lose the AC mains line cord running up the wall.
In our third annual contest, Design News and Allied Electronics are going to crown a winner in early 2016 for the best reader gadget submission this year, and once again, you, the readers, are the judges!
The Attack Dyno brings car enthusiasts an attack timer and dynamometer in a small, portable package with the ability to output vehicle torque, speed, horsepower, 1/4 mile times, 0-60 mph acceleration times, ambient air temperature, and more.
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