Built mine tonight and it worked great! Attached a picture of the board. I went with a cheaper PCB board and soldered everything. Since the Teensy 2.0's are out of stock right now from Pjrc, I socketed mine until I can get another couple. Going this route keeps the cost down pretty cheap. I had ...

Thanks for the quick feedback. Going to build one tonight or tomorrow. Will post the results when I do!

Quick question. Getting ready to build this on a breadboard. I looked at these two circuits posted by Grendel and noticed a difference in the two. On the first one IMG_0553 pin 3 on the 15pin connector is connected to B4 on the Teensy (obviously going through the resistor). Pin 13 on the 15 pin goes ...