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  • Maybe to much noise or load on the 5V regulator? How much power are you drawing? And what's wrong with just using a USB power supply? They are cheap and easy to find. Commented Jun 19, 2016 at 21:39
  • And a good clean picture, and schematic always helps. Commented Jun 19, 2016 at 21:43
  • Thanks for the help. Added a photo... not sure it shows it real well. Downloading Fritzing now so schematic to follow. How do I measure how much power I am drawing (remember newb here). I want to ultimately use battery power. Any recommendations on a battery pack that will connect to the USB Type B port? Also I would like to understand what I am doing wrong or the issue. Commented Jun 19, 2016 at 22:07
  • Along with Passerby's comments, your stepping on your own brain. Do not over complicate the wheel. Stick with what works and make it more permanent. There is likely nothing wrong with your code or it would not work at all. Commented Jun 19, 2016 at 22:32
  • Do you have enough of current supply? What if your power supplies are just too low on current - cannot work properly because arduino cannot get enough current to power everything? Just try (if you have) something with 12V and 1A. It should be more than enough, but..at least, give it a try. Commented Jun 20, 2016 at 0:14