I have read the unofficial manual and posts but still a little unclear. Looking to contol 2801 nodes and just do not want to harm the unit or myself. I tried using option 1 on page 9 of 33 in the unofficial manual and just get the first node to come on dim blue. I an using a 5v power supply and on K1 jumping between +v and +5. I do not see any other info I feel good about trying. Any suggestions woulf be a great help!