Its means to be interfaced to a PC over USB, but it appears to provide 9 DOF (accelermeters, gyros, and magnetometers). The device apparently can output the raw sensor values and/or Kalman filtered quaternions

Too good to be true?

- Roy

Views: 1891

Comment by Reto on December 4, 2009 at 11:05am
Awesome board for the price if there's a way to interface it through any other interface than the USB/HID. I just inquired about such possibility at pnicorp and await some answers.
Comment by Angus Peart on December 4, 2009 at 2:00pm
Don't want to sound like a broken record, but it's not 9DOF, it's only 6DOF, unless you found some more dimensions I wasn't aware of? :)
Correct terminology would be 9DOM.

Don't the Wii controllers already do this, hand held controller stuff, for less?
Comment by Roy Brewer on December 4, 2009 at 2:43pm
Well, according to String Theory there are at least 10 dimensions :-)

But, I agree, there aren't 9 Degrees of Freedom here. What does "DOM" stand for?

The Wii controllers don't have 3 axis magnetometers. They also don't output quaternions (although its not completely clear if the device outputs quaternions of if the PC based interface software puts out the quaternions)

- Roy
Comment by Angus Peart on December 4, 2009 at 4:56pm
As far as I know, in this context DOM stands for "Degrees Of Measurement".
Comment by Roberto Hawkowski on December 4, 2009 at 5:18pm
In addition to its USB interface, I wish they (PNI Corp) would provide this gadget (SpacePoint™) with a serial RS232 and/or I2C and/or SPI interface so that we can use it with Arduino or any other low-end processors.

Comment by William Premerlani on December 4, 2009 at 5:33pm
Basically, it looks aweswome. Having the magnetometers could be a real plus.

However, from the information on their website and from the video, it does not look like they had UAV applications in mind. For example, I doubt they are correcting the accelerometer signals for centrifugal effects.

And, I would wonder how resistant the gyros and accelerometers are to vibration.

I would also wonder how far away you would have to keep the magnetometers from magnetic interference, such as from electric motors.

Still, it looks like it would not be too hard for them to adapt it for UAV applications. Someone should point it out to them.


3D Robotics
Comment by Chris Anderson on December 4, 2009 at 7:36pm
Yes, I'm somewhat familiar with this company. It's designed for what it says: handheld controllers. It is not optimized for inertial applications and cannot correct for centrifugal effects. So no UAV use.
Comment by Paul Mather on December 4, 2009 at 11:07pm
This video is totally awesome.

See here, it says R/C as one possible use:
Comment by Angus Peart on December 5, 2009 at 4:23am
Their actual chip products like the MS2100 are used in R/C applications, but I doubt this "SpacePoint" is designed to be.
Comment by Reto on December 8, 2009 at 12:43pm
The questions I passed on to PniCorp was transmitted to their dev team as well as a link to this post here. Maybe they'll give us some details directly here.


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