Tevo Tarantula filament sensor

This is filament runout sensor for OctoPi case I made previously. It is very compact and flexible.

I used the Z+ Port, therefore you need to set FIL_RUNOUT_PIN in pins_RAMPS.h to 19:

#define FIL_RUNOUT_PIN 19

In Configuration.h search for the //FILAMENT_RUNOUT_SENSOR define and comment it out. If you want to use the default pinout, also invert the logic of the sensor and disable the internal pullup:

//#define FIL_RUNOUT_PULLUP // Use internal pullup for filament ru