Amazon.com: DC 4V-6V 5V 2-Phase 4-Wire Stepper Motor Driver Controller Board Mini Stepping Motor Adjustable Speed Regulator with Remote Control CW CCW Drive Module : Industrial & Scientific
Stepper motor wiring - Make 'N' Print
Suitable controller for 3 phase stepper - Project Guidance - Arduino Forum
4-wire stepper motor wiring - YouTube
Stepper Motor Controller
3-wire stepper motor - EasyEDA open source hardware lab
Amazon.com : CNCTOPBAOS 3 Axis CNC Kit Nema23 Stepper Motor Dual Shaft 270oz.in 76mm 3A+MD430 Driver+5 Axis Breakout Board Mach3 Controller Card+350W 24V DC Power Supply for CNC Router Engraving Milling Machine :