The one draw back with this Sonic Screwdriver is there is no sonic. The original board in the toy has been rolling around my project box for a while and was subjected to two transatlantic flights, a winter in Boston (understandably, I barely survied that trip), travel to the Bay area and then to Oregon. It stopped working. Otherwise I would have wired it in parallel. But at some point this heavy addiction starts taking a toll on your loved ones and you decide it's time to finish it. I know there are at least two others out there who had the same idea as me (there is no such thing as a original idea). You know who you are. So, there is room for improvement, like a super bright blue LED instead of the green one and the wide angle IR. Smaller IR LED's is a good idea as well, less effort to squeeze it into the head.
I did use a pre-programmed chip and components from Cornfield electronics just because red hair dye doesn't come cheap and Mitch needs to stay on the cutting edge o'fashion .
I also used the $3.50 mini tvBG intructable as a guild. Which helped a lot. And there is little reason to try and re-write an excellent instrutable.
here is a video for it working. I added all the sound effects post production http://youtu.be/AhgCIdJ8kPQ