Hi,
Good you got it sorted, may I suggest if you are going to continue experimenting with electronics/arduino you get yourself a DMM.
Just a cheap one will do, just needs to measure volts/ohms/current (just to 10A is norma) /diode check.
Tom... 
Hi,
Good you got it sorted, may I suggest if you are going to continue experimenting with electronics/arduino you get yourself a DMM.
Just a cheap one will do, just needs to measure volts/ohms/current (just to 10A is norma) /diode check.
Tom...