Shop OBEX P1 Docs P2 Docs Learn Events
Parallax Propeller/WiiMote White Board — Parallax Forums

Parallax Propeller/WiiMote White Board

GarethGareth Posts: 278
edited 2011-03-07 13:40 in Robotics
I have been a fan of Johnny Chung Lees work with the Wiimote camera for a long time now ....
... (its always/always roaming in the back of my mind)
.... during my experimentation with the "Lassiter" i had one of those wait a "MoMo" moments .................
Thats when the fun began and some simple modifications turned out into a Virtual White Board.
PropellerWhiteBoard5small.jpg

The Wiimote can track InfraRed Light, i have made an IR pen from an IR LED with resister through a switch to a 3V battery supply.
By pointing a wiimote at a LCD display, you can create very low-cost interactive whiteboards or tablet displays.
Since the Wiimote can track 4 points, up to 4 pens can be used simultaneously .
It can also be used with rear-projected displays ie Beamers for extra fun and immersion.

My system uses a Parallax Propeller chip programmed in spin.......
..... the Key to the whole idea is a simple Hacked WiiMote Camera tracking an InfraRed Blob of light.

PropellerWhiteBoard1.jpg

PropellerWhiteBoard3.jpg
The Hacked Wiimote - interrogated via i2c

PropellerWhiteBoard6.jpg
Here is the Physical InfraRed Pen used for the Virtual Painting
Its basically 3V battery connected through a switch and resistor.

PropellerWhiteBoard7.jpg
Here you can see my virtual screen reset buttons.
You can have as many as you want, any size/shape and wherever you want.

PropellerWhiteBoard10.jpg
PropellerWhiteBoard11.jpg
PropellerWhiteBoard12.jpg
PropellerWhiteBoard13.jpg
PropellerWhiteBoard14.jpg
PropellerWhiteBoard15.jpgPropellerWhiteBoard16.jpg
PropellerWhiteBoard17.jpg
PropellerWhiteBoard18.jpg
BTW :- its not limited to a small screen - it can be scaled up to Johnny Chung Lee style "Beamer"
512 x 384 - 168K

Comments

  • Ding-BattyDing-Batty Posts: 301
    edited 2011-03-07 11:01
    Congratulations, Gareth -- and you also made it on Hack-A-Day!
  • GarethGareth Posts: 278
    edited 2011-03-07 13:40
    Ding-Batty wrote: »
    Congratulations, Gareth -- and you also made it on Hack-A-Day!
    Thanks for bringing it to my attention........... (after your comment i could not believe it ..... and yes and i did the jumping off the table routine ;-)
    I have often dipped into hack-a-day when i was researching wii-bluetooth links ... (the project is so much easier without bluetooth)
Sign In or Register to comment.