Hi,
I am using an Arduino Pro Mini http://www.arduino.cc/en/Main/ArduinoBoardProMini for a project. It has 3 GND pins. I need 5 for this project. This project has to be as small as possible, so I am wondering how best to provide for the necessity of extra ground pins for various switches, LEDs etc. within a small enclosure.
Sorry for the newbie question, any help would be greatly appreciated.
Connect to one of the grounds and split it out there. Or go from device to device to device, and end up back at the board.
Hi,
Thanks for taking the time to answer my question. So connect the grounds all together and then to the board?
Thanks 
Yes.
If all digital should be okay. If have analog & digital, split those up.
Just switches & LEDs should not be a problem.
Maybe consider a Mini-uino for your next project. I provided for lots of grounds just for that.
I have 50 PCBs on order, due in any day now, selling tha bare PCBs for $2 each.
35 spoken for already. More discussion on the "very small arduino" thread (search using quotes, pops right up).
All digital so should work. Thanks very much for your help 
