TouchFactors

The first lesson we learned in our experiments is not to buy IR LEDs from a bin at a bulk electronics store unless they have the specs.  We bought 50 of these little black IR LEDs for 15¢ a piece.  We were hoping that since they came lined up in a row, it would make them easier to solder together.  Several months later, we still can’t figure out how to make them light up… we ended up running to radioshack and paying their outrageous price of $2 per LED for our first tests of the IR Cam.

Those little black specs are IR LEDs... or at least we think they are since we haven't actually gotten them to work yet.