I ready to begin my wiring and I can not found full sketch of wires or wiring diagram.. just a single with 20 buttons... ( https://www.737diysim.com/_files/ugd/031b6b_1db1d8fa708341f086d77ed8d1f0d01d.pdf) maybe I am lost some point.. anyone can give me some directions? I have 67 switches and 67 leds. humm my mega just 53 pins.... If I connect 63 led on series. still I need 13 extra pins.. , this is my second mega?? yup. you are right I am lost..
Thanks in advance..
Mtango
trying to figure it out.. why wiring diagram said.. " Repeat for all 74 switches." when I have just 69 in my FMC? ( letters, numbers action, L+R )
any update?
I think my mistake is. thinking in connect the leds to arduino.. instead of 12v PS.... iam correct?.. and then, connect the rest of "buttons" as usual to my Mega....
Mtango
That is the correct wiring diagram, & yes you will need an extra mega for a few buttons.
looking at the wiring diagram we got a bit confused by the way the tactile switches (gnd & B) seem too both go to a ground but it should still work the same, just drawing a bit confussing.
Good luck
Riche..