Features: 5 lines and 4 phases can be driven by ordinary uln2003 chip; can also be connected in phase 2 development board. Supporting the use of a direct plug and easy to use stepper motor used in the development board. ULN2003 stepper motor driver board: A, B, C, D four-phase LED indicates the status of the stepper motor work. Stepper motor with a standard interface, when used directly pluggable.
Specifications: Diameter: 28mm / 1.1in Voltage: DC 5V Length: 274mm / 10.8in Step Angle: 5.625 * 1/64 Reduction ratio: 1/64 DC Resistance: 200±7% (25) Insulation Resistance: >10M (500V) Dielectric Strength: 600V AC / 1mA / 1s Insulation Grade: A No-load Pull in Frequency: >600Hz No-load Pull out Frequency: >1000Hz Pull in Torque: >34.3mN.m(120Hz) Detent Torque: >34.3mN.m Temperature Rise: <40K(120Hz) Noise: <40dB (120Hz, No load, 10cm) Board Size: Approx. 29 * 21mm Total Weight: 41g / 1.43oz