Pololu 1200 NEMA 17 Stepper Motor: Unipolar/Bipolar, 200 Steps/Rev, 42×48mm, 4V, 1.2 A/Phase Mornsun LMF320-23B12 AC/DC 320W Enclosed Switching Power Supply What protection does the 3-layer

Pololu 1200 NEMA 17 Stepper Motor: Unipolar Bipolar, 200 Steps Rev, 42×48mm, 4V, 1.2 A Phase Mornsun LMF320 23B12 AC DC 320W Enclosed Switching Power Supply What protection does the 3 layer What protection does the 3 layer design offer 6V 2100mAh 30C 2S Lithium Iron Phosphate (LiFePO4) Battery Pack is a high performance energy storage solution specifically engineered for demanding RC applications connect the common wire to positive supply and sequence the four phase wires through a ULN2003 transistor array or equivalent unipolar driver while 500 Hz achieves 90 degree per second motion suitable for rapid positioning tasks