Arduino was damaged by receiving 12v voltage
I connected 5 step motors and smps to Arduino in order to give 12v to the step motor,
but it was broken by smoke in Arduino.
Please let me know if you have a solution.
Motor Electrical Specification:
Motor Type: Bipolar Stepper
Step Angle: 1.8 deg.
Holding Torque: 40N.cm (56oz.in)
Rated Current/phase: 1.7A
Phase Resistance: 1.5Ohm±10%
Insulation Resistance: 100MΩ¸ Min, 500VDC
Insulation Strength: 500VAC for one minute