I an planning to use the nifty Bluz Protoshield (V2). My old system is operating on 5V and the BLUZ was powered via Vin.
I see the shield has a 3.3V rail. Is this connected to the 3.3 input on the board or can I supply 5V to that rail?
If not, what is the easiest way to drop the voltage from 5V to 3.3?