I´ve got a wall adapter wihth this characteristics, and would like to know if it would work with my Arduino Mega:
Input: 100/240 v 50/60mA 250 mA
Output: 9 v ___ — 1.5A
The center pin is positive.
The problem is that the plug is not 2.1 mm but smaller. Could I just get an adapter for that?
Thanks for your help!