Stepper motor - NEMA-17 size - 200 steps/rev, 12V 350mA

A stepper motor to satisfy all your robotics needs! This 4-wire bipolar stepper has 1.8° per step for smooth motion and a nice holding torque. The motor was specified to have a max current of 350mA so that it could be driven easily with an Adafruit motor shield for Arduino or other motor driver, and a wall adapter or lead-acid battery.

We drove it with an Adafruit DC & Stepper Motor HAT for Raspberry Pi and it hummed along nicely at 50 RPM. To connect to the Adafruit Motor Shield, put the wires in this order: Red, Yellow, skip ground, Green, Brown (or Gray). Here are two common motor shields to drive this motor;

Adafruit DC & Stepper Motor HAT for Raspberry Pi – Mini Kit

Adafruit Motor/Stepper/Servo Shield for Arduino v2 Kit – v2.3

Specifications

• 200 steps per revolution, 1.8 degrees
• Coil #1: Red & Yellow wire pair. Coil #2 Green & Brown/Gray wire pair.
• 4-Wire, 30cm/12" wire leads
• Bipolar stepper, requires 2 full H-bridges!
• 42mm/1.65" square body
• 31mm/1.22" square mounting holes, 3mm metric screws (M3)
• 5mm diameter drive shaft, 22mm long
• 12V rated voltage (you can drive it at a lower voltage, but the torque will drop) at 350mA max current
• 28 oz*in, 20 N*cm, 2 Kg*cm holding torque per phase
• 35 ohms per winding