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 / 1.1inVoltage: DC 5VLength: 274mm / 10.8inStep Angle: 5.625 * 1/64Reduction ratio: 1/64 DC Resistance: 200÷7% (25)Insulation Resistance: >10M (500V)Dielectric Strength: 600V AC / 1mA / 1sInsulation Grade: ANo-load Pull in Frequency: >600HzNo-load Pull out Frequency: >1000HzPull in Torque: >34.3mN.m(120Hz)Detent Torque: >34.3mN.mTemperature Rise: <40K(120Hz)Noise: <40dB (120Hz， No load， 10cm)Board Size: Approx. 29 * 21mmTotal Weight: 41g / 1.43ozPackage List:1 * Step Motor 1 * Driver Board"
