I just received my rainbowduino v3.0b programming (prebuilt with 8x8 RGB Matrix). This is the new version with USB mini on it. I power it one since I was told it would work out of the box… I get a single RED led in the center… Is this normal? I have downloaded most rainbowduino files and I have found nothing to change this. DO I need it attached to an Arduino Uno or Nano to give commands 
to it for operation? I was under the impression it would work on it’s own having the Atmega 328P embedded.
Please help.
Mitch Katz
WWW.visiblediodelasers.com