KINGROON KP3S PRO - Extruder Driver Vref Adjustment; Inductive Sensor Connection

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4.2 Adjust extruder driver vref.
 Motor current : 0.85A RMS
 Motor peak current: 1.2A
 Vref. TMC2225: 0.95 V
4.3 Inductive sensor connection
Plug inductive wires into the corresponding ports on the mainboard (Z_min or Z_max)
 S for signal.
 G for ground
 5V for positive