Attack! But please one unit per person! The demand is so high, be nice with others!To buy it click here please.[Copy/Paste Update]:Also note that FMA XY is $43, the Z sensor wasanother $25, and the cable wasn't included. So that was at least $75with cables. Also, we have to pay a royalty to FMA and don't buy partsat the same volume they do. Plus, of course, FMA doesn't make the Z atall anymore.You might also want to note that our sensors are less than thePaparazzi ones ($125:http://ppzuav.com/osc/catalog/product_info.php?cPath=13_5&products_id=66&osCsid=08841e8ba7cd41f6d279d30be5167e22)and the same price as AttoPilot. Or you can make your own, just buy the 6 thermophiles for about hundred dollars from Digikey (http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MLX90247ESF-DSA-ND). So basically these are tied for thecheapest full XYZ sensor solution in the world.However, if people want to wait for FMA to bring the XYs back instock, people can always buy two of them and use one as a Z sensor andsave a few dollars. (just ignore one wire).
Here is some code to interface the Wii nunchuck (3axis accel) to the Adruino chip. Can also interface Wii motion plus (3axis gyro).
Any interest here ?
Earl nunchuckAdrunioEC.pde
Are these sensor designs open source as with everything else? I would be interested to see the schematic of how they are designed. You say we can make our own, and provide a link to digikey, I would like to see the schematics if all possible. Also, which patent are you paying royalties on? I've just completed a graduate course on intellectual property and would be interested in looking at it.
Cheers,
-Todd
So, people talking about gyros got me thinking... Couldn't you have 2 sets of xyz sensors spaced at a known distance, same xyz orientation, and known positions, and yuse the average x/y/z to determine accel, and the difference to determine spin?
Sorry if it's in an irrelevant
thread, but this seemed the closest to the topic...
You are all probably right, but this is water under the bridge. Better to pay the licence fee now and innovate to migrate to non-patented technologies. As far as I'm concerned, patents are just an incentive to obsolete that technology as soon as possible. FMA won't have long to enjoy its monopoly.
bGatti,
The IR sensors are to measure the difference of temperature between earth and sky. Good enough to know the orientation of the aircraft respect to ground, even in dark. Is a clever idea.
The worse part is that this technology was develop by NASA (and later abandoned), not by the person who patent it. That is an opportunist and there's nothing we can do here in the US. My idea was to offer modified version of paparazzi sensors. But if we do that they may proceed legal against us (and only us).
Earl,
in 2.1 yes! in 2.2 not (for security), only in stabilization mode (no GPS plugged). Because if you go out of range in 72mhz the servo moves like crazy! and you will crash.
Comments
Any interest here ?
Earl
nunchuckAdrunioEC.pde
Did you know that AN4 and AN5 are an i2c bus ? The Wal-Mart Wii 6DOF is interfaced via i2c!
Earl
You can find all the schematics here:
http://paparazzi.enac.fr/wiki/Infrared_Sensors
Attopilot, FMA and paparazzi IR sensors are exactly the same diagram, just some resistors are different in values.
Cheers,
-Todd
Sorry for the posthumos addon....
Sorry if it's in an irrelevant
thread, but this seemed the closest to the topic...
The IR sensors are to measure the difference of temperature between earth and sky. Good enough to know the orientation of the aircraft respect to ground, even in dark. Is a clever idea.
The worse part is that this technology was develop by NASA (and later abandoned), not by the person who patent it.
That is an opportunist andthere's nothing we can do here in the US. My idea was to offer modified version of paparazzi sensors. But if we do that they may proceed legal against us (and only us).in 2.1 yes! in 2.2 not (for security), only in stabilization mode (no GPS plugged). Because if you go out of range in 72mhz the servo moves like crazy! and you will crash.
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