I am not very far into learning electronics yet but I ordered 20 of these buttons for a midibox SID synth I am making (the buttons are fantastic! and so cheap!) I was wondering if anyone could tell me how they are wired though? I want to set them up so the buttons are always lit regardless of being pressed or not being pressed. I have taken a photograph with my camera phone of the back of the veroboard I have soldered them to…Its horrid picture quality but hopefully you get the idea of how I have laid them out. I have marked in the orientation of the LEDs for clarity. Could anyone identify which of the remaining 4 connectors are the ones for the actual button function? I would have thought only 2 of the 4 were actually used to send the button current? Also…what kind of current do I run to the leds? do I need a resistor or are they good to go? Sorry, I know these questions are worded badly…this really isnt my forte!
Any advice anyone can give is greatly appreciated