Which side of the arduino protoshield is positive/negative on this area?
I am just starting out with Arduino and I have been working on assembling the Protoshield. I am about to install the green LED shown in this picture from Make.com but I don't know which way the LED should be orientated because it didn't say in the guide and I couldn't figure it out on the board. If you could please say that 1= positive and 2= negative it would help me out alot. Thanks!