$20 Wii Motion Plus 3 axis gyro

Ole Man Earl

Anyone else doing anything with the motion plus i2c sensor ? That and a $15 nunchuck = $35 6DOF i2c unit !
I have a lot of data on the nunchuck and the motion plus.
Earl

John Abshier

I haven't had any luck so far. I either get all 0's or all 2^16's. For no rotation I expect to get 2^15.

John Abshier

Ole Man Earl

Here is some data to start with. They were extracting the data via the wiimote bluetooth.
Also, here is a spin i2c scanner.

http://abstrakraft.org/cwiid/wiki/MotionPlus

I found the motion plus at 0xA0 and the nunchuck at 0xA4

Post Edited (Ole Man Earl) : 6/19/2009 2:39:40 AM GMT

Ole Man Earl

Something to try.
I get some data

00
60
02
98
04
00
00
00
00
01

I think this is similar data to the bluetooth guys.

Ole Man Earl

Now I get

0038
0005
00e8
00ea
00c9
0058
00ab
0080
0088
00c9

The data doesn't seem to change even if I do a power off.

EDIT:

The data did change after a few mins.

Post Edited (Ole Man Earl) : 6/19/2009 7:07:13 PM GMT

DogP

Yeah, I've been playing with it connected to my Prop. I've got code that does Nunchuck, Classic Controller, and Motion Plus that I'd like to get into the obex... I'll post my code as soon as I get the okay from the guys I based my code off of.......... John... you've got a PM [noparse];)[/noparse] .

DogP

Ole Man Earl

here is my code that is intermittently getting motion plus data.

Ole Man Earl

if some of your code came from the obex, just give credit in the top comment section and at the bottom add the mit license...I think

DogP

Actually, the code I got was just posted to the forum, so I wasn't sure what kinda license was expected (I assume none since it was posted without any sort mention of license), but I figured the right thing to do was to verify with the original authors. Anyway, they both said okay... so I posted it here: http://forums.parallax.com/showthread.php?p=817204 .

DogP