Jon, thanks. The board does have an accelerometer and it is what triggers the display. It was a challenge, though, separating out the gravity signal from the motion signal. Also, I owe a lot to my blogger Ryszard Milewicz, who started this with a program that displayed the I heart MCC message when he waved it around in his hand. I "featureized" it a bit, adding the multiple message capability and adjusting the display timing somewhat. Oh, and it's my hand.
Hi Rich, Very clever approach to developing a cool embedded product. The method of modifying code to change the product functional behavior is what I discuss with my ITT Tech Electrical Engineering Tech students every class period. I often use this rapid development method for embedded devices and gadgets I create in my home lab as well. Very cool project!!!
Some of my code would make a grown C programmer cry too, RichQ. What some folks might call "spaghetti code" I prefer thinking of as "thinking outside of the box" :) Besides, since I am Italian, the moniker fits in my case LOL
Rather than reinventing the wheel - you simply readjusted it - a great time saver that still took tech know-how - Great job!
Instead of pine, it might be better to use styrofoam. Seams the weight would waer on your wrist after a while. Another improment would be to use a spring steel joint between the handle and the "hand". That way, a little motion would set the hand into action with less strain on the wrist. Just a though for anyone concidering to build this.
The foam is a good idea. I had to make this in short order out of supplies around the house and tried using some springy stuff for the wrist but it was hard to get a consistent movement, so just made it rigid. Not a new idea, I know, but had fun with it.
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My kids had such a toy MANY years ago. You swung this paddle shaped object back-and-forth and it displayed your keyed in text using LED's. In the dark your eyes provided the persistence to make a stable image.
(My youngest is about to turn 39 years old... so this was quite a long time ago.)
I saw a fun one a few years ago for the 4th of July. It was a battery operated fan that would display animation of fireworks when the fan was running. The fan blades were a flex circuit with RGB LEDs that produced the animation. I wanted to say that it was a very cool toy, but that would be an awful pun even if it wasn't intended.
Siemens and Georgia Institute of Technology are partnering to address limitations in the current additive manufacturing design-to-production chain in an applied research project as part of the federally backed America Makes program.
Most of the new 3D printers and 3D printing technologies in this crop are breaking some boundaries, whether it's build volume-per-dollar ratios, multimaterials printing techniques, or new materials types.
Independent science safety company Underwriters Laboratories is providing new guidance for manufacturers about how to follow the latest IEC standards for implementing safety features in programmable logic controllers.
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