Hey all,
So I need to make 20 setups that control 4 neopixel jewels off an arduino nano. I posted an image of my fritzing diagram. Does this look right? It works, but what do you think about it electrically?
Just for kicks I thought I would make a PCB board that I could just solder the board and BT in, but I cant get the routing to work out.
I am after all a major rookie!
Btw, I am using a hc-06, not the 05, I just couldn't find it in the fritzing catalog.
No idea if it looks good 
Does the key pin on the HC-05 need to be connected to either GND or Vcc (5V or 3.3V)?
I'm not familiar with Neopixel jewels; I think I understand the function of D9..D12 on the Nano; what are D2..D5 used for?
With regards to routing
You have the option to make the pitch of the resistors a bit bigger (different footprint, e.g. 0.5" instead of 0.4") so you can route more signals under it if needed.
Placement of connectors is not really critical (my view); looks neater if they're all next to each other but two at each side of the board might also suite your needs (or one plus three)
You might also have the option to route in the easiest way first and after that adjust the functions of the pins of the Nano (code change).
