RobMeerman.co.uk

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== Wiimote ======
I've wanted to use my Wiimote to control my PC for some time now, and finally got around to trying it all out.

Getting the wiimote connected to my PC was easy - just install ''wmgui'', a little GUI app which demonstrates connectivity (via ''libcwiid1.so'').

There's also a package called ''wminput'' which probably does what most people want - it turns a wiimote into an X11 input device (e.g. mouse) so you can point to move the mouse around. You have to ''sudo modprobe uinput'' first on Ubuntu 9.04, btw.

===== Doing it myself =====
I wanted to play with it myself, so I installed ''python-cwiid'' and messed about with a Python script until I got the hang of the API(([[http://wiki.wiimoteproject.com/Reports|WiiMote Project.com]] was useful in working out the API)):

<code python>
#!/usr/bin/env python
# Wiimote experiments. Hopefully this'll grow into something I can use with
# wminput (or emulate it to the same affect)

import os
import sys
import time
import cwiid

wiimote = None
print "Press 1+2 on the Wiimote now..."
while not wiimote:
	try:
		wiimote = cwiid.Wiimote()
	except e:
		print e
		print "Ignoring previous exception"
		time.sleep(0.5)

wiimote.led = cwiid.LED1_ON | cwiid.LED2_ON | cwiid.LED3_ON | cwiid.LED4_ON
wiimote.rumble = True
time.sleep(0.4)
wiimote.rumble = False
wiimote.led = cwiid.LED1_ON | cwiid.LED4_ON

print wiimote.state

wiimote.enable(cwiid.FLAG_MESG_IFC)	# "if changes"
wiimote.rpt_mode = cwiid.RPT_BTN
while True:
	messages = wiimote.get_mesg()

	for mtype, m in messages:
		if mtype == cwiid.MESG_BTN:
			for x in dir(cwiid):
				if not x.startswith("BTN_"): continue
				if eval("cwiid.%s" % x) != m: continue
				print x
				break
			if m == cwiid.BTN_A | cwiid.BTN_B:
				print "A + B, exiting"
				wiimote.disable(cwiid.FLAG_MESG_IFC)
				wiimote.rpt_mode = 0
				wiimote.close()
				exit	# Causes a segfault.. (why?)

		elif mtype == cwiid.MESG_ERROR:
			for x in dir(cwiid):
				if not x.startswith("ERROR_"): continue
				if eval("cwiid.%s" % x) != m: continue
				print x
				break

		else:
			for x in dir(cwiid):
				if not x.startswith("MESG_"): continue
				if eval("cwiid.%s" % x) != mtype: continue
				print x
				break
</code>

Next I need to workout how to inject things into X11, probably via ''/dev/misc/uinput''. I think [[http://www.koders.com/python/fidAC06355D48C7BA355686BC67E42D0C7B09CD7FEA.aspx|this snippet]] will be invaluable.
RobMeerman.co.uk

User Tools

Site Tools

Page Tools
