[Johnny Lee]’s colleague [Paul Dietz] has done some interesting work using interactive tables. He’s specifically researched how to determine how full a drink glass is. In the video above, he’s using Microsoft’s Surface, but this technique should work with any IR camera based multitouch table. Determining the drink level requires custom glassware that has a small prism inside. When the liquid level is above the prism, light passes through, but when it’s below the top it reflects more IR light back into the table. Using this information, restaurant staff could serve drinks in a more efficient manner.
[Paul] has worked on another project that uses RFID and capacitive sensing to a similar effect.
[ScottSEA] has six cats. As you can imagine, with six cats, a simple litter box just doesn’t cut it. [ScottSEA] uses the CatGenie. While a self cleaning cat toilet is a technical marvel, it has one major drawback. Much like an ink jet printer, it has disposable cartridges. Those cartridges, just ike some print cartridges, have a built in counter that disables them after so many uses. After adding up the totals for six cats worth of cartridge use, [ScottSEA] started hacking. He has posted directions on how to manually refill them, as well as reset the internal counter using an Arduino.
We suggest that he find a way to harness all that cat power for his home electronics. How many watts could you produce per cat?
Yet another custom X Box controller has come out of the acidmods foundry. This one, specialized for FPS games opts for two analog sticks up front, and complete removal of the D pad and buttons. They break down the process quite nicely with very detailed pictures of how to modify the case and move the analog stick. Check out the video of it in action after the break.
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[Olivier] told us about this fantastic project where he built his own RC airplane. The airplane itself is nothing special, it is the controls that are worth paying attention to. He used an Arduino Diecemilla , some XBee transceivers, and a SparkFun Wee. The main site is a general overview, but there are links to more detailed breakdowns of how to build some of the parts. There are several videos of him flying it as well.