Multitouch+Display+v1.0

Description:
Multitouch technology has been around for ages - it's used in iPhones, tablet PCs and even the Microsoft Surface. It's a surface - you touch it, it does something. This multitouch display will be in the style of the Surface, and will hopefully end up as an interactive classroom table.

Project Goal:
Create a multitouch display for classroom use.

Current Stage:
Working prototype

Goals for Next Meeting:

 * Finish the wood frame
 * Think of ways to attach it

=Information:=


 * ~ Materials Needed ||~ Materials in Use ||~ Tools Used ||~ Software Used ||
 * * A suitable frame
 * Infrared-modded webcam || * Acrylic pane, 2'x3'
 * Computer Power supply
 * Silicon Caulk
 * Tracing paper
 * Styrofoam
 * Assorted wire
 * 24x 940nm LEDs
 * 2x 47 Ohm resistors
 * Duct tape (woohoo!)
 * Color Projector
 * Mirror || * Soldering iron
 * Caulk gun
 * Table saw
 * Power drill || * tbeta ||

Design challenges:
What we had trouble with, things to watch out for.

Bendiness. We need a proper frame!

We measured the wires that connected to the power supply too short (even at two feet!). Make sure several feet of wire is used to connect the LEDs to the PSU.

In rigging up the power supply, we didn't realize we had to hotwire the supply in order for it to work - short out the green wired pin with a black one in the large connector.

Had trouble getting the silicon to lay flat on the tracing paper. We should try a different approach (directly on the acrylic? Side spacers?) for the next version.

Media
Links to Youtube, Flickr, etc. displaying our progress so far!

Infrared Touch Test Video