i have just bought a leonardo-board without headers, because i want to build it fixed in a box.
now i have a little question: there are three "pins" to solder the external power-supply on. wich one is +9v and wich one is ground? and the third solder-pad is just for fixing the original-power-jack on the board, isn't it? i have searched the whole web, but i couldnt find anything.
hm, i still got no answer, so i tried to messure the voltage on my arduino uno. i found out that the lower pin is ground and the right pin is +9v. is this right? could someone check this as i wrote it in the following picture?!? i dont want to crash my new leonard-board the first time i connect it...
again: thanks for your help.
