WiiLi.org

[Classiclll]

although written in Japanese, there is some informations
http://wlog.flatlib.jp/item/1117
and someone in japan is just making a weight recorder
http://hp.vector.co.jp/authors/VA004474/win/win32.html#wiibalance
from my understandings, the wiiboard has a bt-device and behaves as an extention like nunchuks and classic controllers.
_________________
Classiclll

[tuxido]

Great find! babelfish translation:

2007/12/14 Analytical memo 2 of balance Wii board Sports/ healthy system Posted by: Oga at 00:05 It was connected after all with treatment by way of the extended port. Access method is the same as Nunchuk and Classic Controller.

Device similar by way of the other extended port, writing to the register with 16, initialization If it does, information of renewal of the extended device can be acquired.

For example when report number 0x34 was used, the data can take with the below-mentioned type.

34 00 00 AA AA BB BB CC CC DD DD? ? ? ? EE.. with respect to the AA AA right (L) under the BB左上 BB right (S) with respect to CC右下 CC left (S) under the DD DD left (L)


(AA AA? BigEndian) As a some value has entered into also EE, it is visible, but use is unclear. As for sensor 4. It seems that enters into the position of 4 these feet of the balance board itself.

+----------------+ | BB (S) AA (L) | | DD (L) CC (S) | | POWER | +----------------+


Turning over, when just the foot part tries pushing, AA above? The value of DD individually The circumstances which react are recognized.

As for type of sensor, considered as the range of value 2 types.

(L) 18000? (S) 2700? Hitting

Perhaps this two the charge range of the respective precision differs. Arranging in opposite angle, while supplying precision, when it is designed to be the structure which direction is recognized It is thought.

2007/12/17 postscripts: It was variation of the mere sensor

In addition as for this value 0x17 decoding like Nunchuk/Classic is unnecessary. Actually 0x04a40000? Trying dumping 0x04a400ff, that way As value of the element has taken, it is visible. For example 0x04a400fc from first is 0xa4.

0x04a400f0 which is thought that you use in the identification? Line

04a400f0: Ff ff 00 00 ff ff 00 00 00 00 00 00 a4 20 04 02


In addition it was understood Power source as for button (A) of Wii Remote button suitable As for power supply indication light LED1 Nintendo RVL-WBC-01


- Distinction algorithm of balance Wii board (1) it reads out the 0x20 report, check whether the extended port is used, If (2) the extended port is not used, only the Wii controller If (3) there is connection to the extended port, it reads out 0x04a400fc, check whether 0xa4 If (4) 0xa4 it does not decode 0x17. If it is not 0xa4, it converts 0x17 (5) 0x04a400fe? It reads out ff and distinguishes. 0x00 0x00 Wiimote+ ヌンチャク 0x01 0x01 Wiimote+ classic controller 0x04 0x02 balance Wii board

More information such as calibration are unclear.


Reference page WiiLi.org Wiimote WiiLi.org Wiimote/Extension Nunchuk WiiLi.org Wiimote/Extension Classic Controller WiiBrewWiki Wiimote

Link WiiFit and balance Wii board

[Classiclll]

thank you. google translation:

2007/12/16
Wii balance board analysis NOTE 3
Sports / health system Posted by: oga at 01:29
I bought one more WiiFit.
The first is the second board and the balance is quite different numbers.
"Wii board balanced analysis NOTE 2" and two types of sensors <br /> wrote that the difference was just an individual.

HID 0x34 reports are slightly better than 0x32 efficient.
IR sensor and acceleration sensor that is not the pressure sampling values , but only enough for eight.

values for calibration are stored after 0x04a40020 .

= A sensor on the right
B = Left upper sensor Lower right
C = Right under sensor Upper left
D = lower left sensor

[Classiclll]

and google translation:

2007/12/16
board Wii balance analysis NOTE 4
Sports / health system Posted by: oga at 02:22
i got some body weight value.

"Wii board balanced analysis NOTE 3" caribration parameters use.
Pre-register from A2 to A0 read the D0-D2.

Wii WiiFit balance board is so max 136kg, simply
A1/B1/C1/D1 deemed to midpoint (68kg) and the interpolation try.

(A) sensor on the right sampling and P0a and values
interpolated value is P1a

P0a < A1

P1a = 68 * (P0a - A0) / (A1 - A0)

P0a> = A1

P1a = 68 * (P0a - A1) / (A2 - A1) + 68

This A, B, C, D sensor four minutes to take the average asking, it just
match my weight.

The number of untested samples were so small you need more verification.
This PC based on Bluetooth will make history with a total weight.


See also page
Wikipedia balance board Wii

Related entries
balance analysis Wii board NOTE 3
NOTE 2 Wii balance board analysis
NOTE balance board Wii
_________________
Classiclll

[Classiclll]

and

2007/12/21
Balance use a PC board Wii wiibalancepc v0.07
Sports / health system Posted by: oga at 01:08
100m sprint (100 steps) mode has been added.
100m (100-foot) hour as fast as possible. [Enter] key start
balance to the board if multiple units connected at the same time matchup.

Download
wiibalancepc v0.07 using a PC board Wii version balance scales
http://hp.vector.co.jp/authors/VA004474/win/win32.html#wiibalance

Bluetooth can connect to the limits of the screen because of
and the four largest in the meantime.

And even if multiple units connected, and passometer independent of the speed of
able to retain.
Small, but each character individually displayed.

Testing and debugging work, I ran pretty feel.
Simultaneously with the pedometer step 20,000 today.
_________________
Classiclll

[tuxido]

I pasted all the information into the wiki to rewrite the text...

http://www.wiili.org/index.php/Wii_Balance_Board_PC_Drivers

[CarlKenner]

I had a go at cleaning up the translation on the wiki.

I'm having a go at implementing it in GlovePIE now.