I am attaching a 12 V LED light strip ordered from Farm Bot to my V1.2 electronics. I tested the light strip on the input terminals for the RAMPS card to verify the negative/positive. All works fine. Light worked in test. (blue is negative, brown is positive on the kit supplied)
I attached the wires to the terminals for PIN 8. (10 is Vacuum, 9 is water) I added the peripheral in the Controls tab on the web interface. Lights do not work, The other 2 peripherals still work. Motors still drive. Camera works. All systems normal except Lights do not turn on/off.