Hi Everyone,
I wanted to report back on this project. Unfortunately, I am still having problems getting the circuit up and running. As suggested, I have created both a breadboard version and a protoboard version, but the same problem persists in both cases. I've checked the wiring on both versions and it seems to be correct. As such, I am wondering if this issue is related to my choice of components...
Whenever I plug the circuit into USB, I receive an error that says "USB Device not recognized." Per what I've found online, this issue seems to be related to the 2.2K pull-up resistor, which, when working, would cause the Arduino to be recognized as a low speed USB device. I wanted to play around with different resistor types, so I ordered these 2.2K metal oxide resistors from Mouser. I just noticed that they are rated for 2 watts. (The 68Ohm resistors are also metal oxide and rated for 2 watts.) Could this higher power rating be causing my issue? I ask because I know that the Zener diodes' power rating matter, since a Zener diode's capacitance goes up as the power rating increases. However, I'm not sure if this is the same case with resistors -- shouldn't this rating just be related to how much power the resistors can take before they release their magic smoke? Any insight from you guys would be greatly appreciated!
Other information -- I am running 64bit Windows 7 and I've tried plugging the circuit both into a USB 2.0 and USB 3.0 slot to no avail.
Thanks again!