hi
I bought recently the arduino based Electronic's (fullkit) form the RRRF, and in the small "box" of the Opto Endstop says "Opto endstop 2.1 Kit",and in the instructions on the the reprap webpage are related whit the Opto Endstop 2.1.
My problem is that i noticed in my opto endstop, that says "opto endstop 2.0" in the bord, and there are space for four resistors, and i have only three... Is there a problem with that? I solder only the three resistors? Or should be a different order in soldering them? Please letme know how to make them work,as I have some urgent in putting the machine working...
