No insertion Bong.  Other boards work.  Does anyone offer this repair service?  They should it seems common!

How did I burn out the USB chip?  How can this happen from putting 12v on DIO pin 2?

I put 12v on DIO 2.  Oops!  No bong.  How can I verify my USB controller is blown?  How can I replace it?  Uno.

How can I verify my USB controller is blown?  How can I replace it?  Uno.

I have 2 UNO boards.  No insertion bong here on board A.  I've noticed that it should bong even without a 328.  Green light is on.  How can I verify it is the USB chip?  How did I blow it?  It looks like there is no easy way for me to replace it.  Does anyone repair these online?  Shipping will probably be about the same as buying another?

Is it OK to use USB power and 12v external power at the same time?  I needed 12v power to go to Vin pin like normal for my working Sketch.  But I wanted to read serial debugging at the same time.  Is this how I blew it?  I was going to try the same thing again with board B.

I think I put 12v briefly on digital pin 2.  I would have expected to blow the 328.  USB chip instead?

Interesting.  Why not detect the sound of rapid breathing?  This should work in a quiet room.

Is there any hardware that can turn video into compressed serial data less than 9kB/sec?
How about a way to convert a USB webcam?  That's not going to work it's uncompressed.
How about a video camera module with serial output like the JPEG camera?
A chip to compress NTSC and output serial data?

Any new ideas for 2012?

This example worked wonderfully.
http://www.sparkfun.com/tutorials/152
Only Xbee on UNO.  I wouldn't know how to begin going the other direction, I would like to see what you can find to do it!

I can do it FROM TouchOSC on iPhone to Uno.  But not yet TO iPhone.

Detecting the lean angle of a motorcycle is difficult, especially at higher speeds.  It requires an expensive gyro, not an accelerometer.  A few companies have spent millions of dollars trying to find a better solution.  It would be much easier if there were no vibration nor extreme changes in angle.  There is an alternative using GPS data.  Unfortunately it will not react nearly fast enough to keep a video camera stable or level.

I love motorcycles and video photography.  You're going to want image stabilization in post production anyway to reduce the vibration in the video.  As long as you're doing that, use a wide angle lens and set the parameters to keep the horizon level.  This will work great at angles up to 30 deg, as long as you're not racing.

Unfortunately the frequency of the linkage clicks changes with RPM. 
Even if I tried to keep a constant speed it would vary way too much, of course. 

I like your idea it is so simple!  Maybe there is a way to measure the energy level of each individual click from the linkage.  It would be much easier to measure the total energy in a second.  I can assume the RPM is roughly constant from 1 second to the next. 

Distance = C / sqrt (sound energy level) ?

Do you think I might get 1 meter accuracy?
I believe it might work, out to 20m or more, if there was no other sounds.

OK so I can make a repeating pulse with PWM() or a 555.  Which is more stable?  I understand what you said about missed readings.  And how to calibrate it for temperature and humidity.  One thing at a time, 3D comes later.  We have decided that it will be difficult to receive a click on the helicopter due to all the high frequency clicks already in the blade linkages 3" away.  I'm sending a repeating pattern of clicks from the helicopter?  What am I measuring, the time between them?  Please explain.  It may only change by 50us.  This way I can detect that it's coming or going.  But it will give me no indication of its current position/distance?  Assuming the angle is unchanging, can I get a rough idea of distance from the magnitude of the click?

Maybe I should use RF to trigger each click from the helicopter.  What type of receiver can I use that is light weight?

Would this work for my project?  I can't make much sense of your datasheet.
http://arduino.cc/forum/index.php/topic,84792.0.html

Let's say 10hz clicks.  100hz?  Which is best?  How would this work?  Pseudocode please?  I'm not convinced.
Anyone else agree?

XBee is about 4x that speed.  What hardware can we use to compress the video and send it serially to XBee?
Small in size?  Low power?
Would be cool to see 10fps!