Wii remote

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ATTENTION: This article is a work in progress and not completed.


The controllers of the nintendo gaming console Wii are called WiiMote. This article describes how to install and configure a software to use a WiiMote to control MythTV.

As of 12/29/2006 buttons are working, pointing/shaking is not!


Preparation

  • Connect a linux supported bluetooth adapter (e.g. D-Link DBT-120)
  • Install linux bluetooth support BlueZ
  • Install Python, Python-XLib and PyBlueZ
  • Hint for Ubuntu-Users: Type
 # apt-get install bluez-utils python-xlib python-bluez

Check for working bluetooth installation

  • First check, if the bluetooth adapter is installed correctly. Entering the following command should give you a list of all adapters.
 # hcitool dev
 Devices:
     hci0    01:23:45:67:89:AB
  • Next scan for bluetooth devices. To activate the discover mode of the WiiMote, press buttons 1 and 2 simultaneously, then enter the following command which should give you a list of all bluetooth devices in range.
 # hcitool scan
 Scanning ...
         99:88:77:66:55:44       Nintendo RVL-CNT-01

The WiiMote is named (as you can see) Nintendo RVL-CNT-01.

Install WiiMote Software

Now install the WiiMote software by downloading and unpacking the newest package from this site, or use the subversion repository to get the bleeding edge version.

Edit the configuration file wmd/Config.py Find MY_WIIMOTE_ADDR and set the address of your WiiMote which you got from the previous scan.

 'MY_WIIMOTE_ADDR': "99:88:77:66:55:44",

Find commandMap and configure the buttons to suite your needs

'commandMap': {
  'A': ['key', 'KEY_ENTER' ],
  'B': ['key', 'KEY_ESC' ],
  'H': ['quit', 1],                 # Home key: quits WMD
  '+': ['key', 'KEY_TAB' ],
  '-': ['key', [ 'KEY_LEFTSHIFT', 'KEY_TAB' ] ],
  '1': ['key', 'KEY_M' ],
  '2': ['key', 'KEY_I' ],
  'U': ['key', 'KEY_UP' ],
  'D': ['key', 'KEY_DOWN' ],
  'L': ['key', 'KEY_LEFT' ],
  'R': ['key', 'KEY_RIGHT' ]
},

To test the WiiMote software run WMD.py. Press button 1 and 2 on your WiiMote and wait for the software to connect.

# ./WMD.py
Registering key KEY_ENTER for button A with code 1c
Registering key KEY_ESC for button B with code 1
Registering key KEY_DOWN for button D with code 6c
Registering key KEY_TAB for button + with code f
Registering key ['KEY_LEFTSHIFT', 'KEY_TAB'] for button - with code 2a
Registering key ['KEY_LEFTSHIFT', 'KEY_TAB'] for button - with code f
Registering key KEY_LEFT for button L with code 69
Registering key KEY_M for button 1 with code 32
Registering key KEY_I for button 2 with code 17
Registering key KEY_UP for button U with code 67
Registering key KEY_RIGHT for button R with code 6a
[[1074025828, 3], [1074025831, 0], [1074025831, 1], [1074025828, 2], [1074025830, 0], [1074025830, 1], [1074025828, 1], [1074025828, 0], [1074025829, 28], [1074025829, 1], [1074025829, 108], [1074025829, 15], [1074025829, 42], [1074025829, 15], [1074025829, 105], [1074025829, 50], [1074025829, 23], [1074025829, 103], [1074025829, 106]]
Could not import pygame. Set DISABLE_PYGAME=1
CONNECTING
Looking for Wiimote services at address 99:88:77:66:55:44
Victory! We have found that Wiimote!
We are now connected to Wiimote at address 99:88:77:66:55:44
CONNECTED
Event type WM_CLOCK_BEAT is being ignored
[112, 0, 22, 126, 124, 129, 28, 151, 150, 154, 18, 0, 0, 0, 0, 0, 0, 0, 0]

Now press any buttons on your WiiMote and you should see the corresponding events

...
CONNECTED
Event type WM_CLOCK_BEAT is being ignored
[112, 0, 22, 126, 124, 129, 28, 151, 150, 154, 18, 0, 0, 0, 0, 0, 0, 0, 0]
Send Key DOWN: 50
Buttons down: ['1']
mSend Key UP: 50
Buttons up: ['1']
Send Key DOWN: 23
Buttons down: ['2']
iSend Key UP: 23
Buttons up: ['2']
Send Key DOWN: 15
Buttons down: ['+']
        Send Key UP: 15
Buttons up: ['+']

If you see an error message complaining about a missing uinput-device you have to load the uinput kernel module first.

 # modprobe uinput

Preparing for MythTV use

To use the WiiMote for mythtv we just need to start the main python script WMD.py. Create a file /usr/local/bin/mythtv_wiimote.sh with the following content

#!/bin/sh
while (1) {
  /usr/local/bin/mythtv_wiimote.sh
  sleep 5
}

and add it to your X startup file ~/.xinitrc

# Using the wiimote to control mythtv
/usr/local/bin/mythtv_wiimote.sh &

xset -dpms s off
xsetroot -solid black
xsetroot -bg black
xsetroot -cursor $HOME/etc/X11_EmptyCursor $HOME/etc/X11_EmptyCursor
/usr/bin/evilwm &
mythwelcome

To use your WiiMote just press button 1 and 2 and it should connect to your mythtv box.