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DIY : 100" LCD Projector with touchscreen functionality
DIY : 100" LCD Projector with touchscreen functionality
Your own 8k mini hometheater
Date: 21-04-09
Topic: Tutorials and Guides
Author: ..

Pros:
+ low cost 8k vs 100k for a conventional proj + low maintenance cost + higher resolution upto HDTV

Cons:
- heat - bulky
Index
Conclusion 
Touchscreen


Touchscreen?

Willing to make a cheap whiteboard, multi-point touchscreen?..convert your projected image into an interactive screen. Draw, click, write do whatever you want to with the help of Nintendo Wii remote, an IR light pen and a Bluetooth dongle.

Since the Wii-mote can track sources of infrared (IR) light, you can track pens that have an IR led in the tip. By pointing a Wii-mote at a projection screen or LCD display, you can create very low-cost interactive whiteboards or tablet displays. Since the Wii-mote can track up to 4 points, up to 4 pens can be used. It also works great with rear-projected displays.

Building pens: Here is schematic of the light pen. The LEDs that I use are running at 100mA, but lots of other LEDs will work too. You also might be able to jump start your experimentation by retro-fitting a mini key chain light with an IR LED.

Much thanks to Johnny Lee for getting this done.
A video would give a better idea on the same.


YouTube - Low-Cost Multi-touch Whiteboard using the Wiimote

Links for interfacing Bluetooth devices with the Wiimote and PC and whiteboard platforms
Smoothboard 1.0 Release | Smoothboard.net - The Wiimote Whiteboard
using Smoothboard
BoonJin.com Blog Archive Wiimote Smoothboard 0.4.6 BETA

Basically any inbuilt Bluetooth device can detect Wiimote. For external dongle you may need to have driver updates




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  #1  
By vijayninel 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Ah nice So you dont have to go to the cinema now
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  #2  
By stonedsurd 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Really nice article mate!
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  #3  
By ɱɑɖɖʏ 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Awesome article mate
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  #4  
By Free Radical 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Nice article. i have read about this on diyaudio and other forums. did you build one ?
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  #5  
By vasishta.sushant 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Can you post the actual porjection pics ? Sounds interesting.
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  #6  
By JD666 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Great stuff there dude!!!! infact if you could add fins to the aluminium reflector, it will aid the cooling of the enclosure.

Also, whats your take on putting a LCD above the normal slide projector and using that for projection?? dont have to mess around with the whole lens and distance issue??? just change the lamp to a white colored one, and give it adequate cooling???
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  #7  
By wingzero 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Originally Posted by JD666 View Post
Great stuff there dude!!!! infact if you could add fins to the aluminium reflector, it will aid the cooling of the enclosure.

Also, whats your take on putting a LCD above the normal slide projector and using that for projection?? dont have to mess around with the whole lens and distance issue??? just change the lamp to a white colored one, and give it adequate cooling???
If u can manage to get a normal OHP and mod it its very much possible but u need to source same. Another thing is the cooling should be very much optimized if you are getting an OHP and the i doubt you can use the 400w in that one cause the lamp itself is quite large and everything the lens center, triplet center, lcd center and lamp arc should be in one axis.
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  #8  
By wingzero 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Originally Posted by vasishta.sushant View Post
Can you post the actual porjection pics ? Sounds interesting.
Didn't quite get you?...these are the projected pics only
DIY : 100" LCD Projector with touchscreen functionality - Erodov
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  #9  
By vasishta.sushant 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Originally Posted by wingzero View Post
Didn't quite get you?...these are the projected pics only
DIY : 100" LCD Projector with touchscreen functionality - Erodov
I meant to say, how is the final output. That 100" thing, I want to see the output of this thing.
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  #10  
By wingzero 12-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

@Freeradical : Yup made one...check pics, also the touchscreen is fully funcitonal but some probs in vista i can't utilize my bluetooth dongle, however on lappies it aint a prob.

@Others thanx
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  #11  
By Free Radical 13-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

gr8 megareps for you.
no thanks for me? ?
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  #12  
By JD666 13-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

LCD Overhead Projector

this was what i had in mind.. your idea is surely more accurate and crisper in the picture reproduction, i am sure, and it would be brighter as well.. Just thinking about this, coz i have a giant wall waiting in the hall.. maybe use it for movie screening!!!!
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  #13  
By overkill 13-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

Wow dude! Way to go. This is just brilliant.. Someday when i have enough time and money I will be doing this too.
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  #14  
By Punnyabrata 13-05-09
Re: DIY : 100" LCD Projector with touchscreen functionality

wow dude...you surely deserved to win the [E] article contest.
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Tags
diy 100, diy 100, functionality, lcd, projector, touchscreen

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