8051 microcontroller tutorial: 5.1.2 Rotating Stepper Motor [two direction with LCD]
FX3U "Stepping Motor" Control Tutorial - plc247.com
Drive stepper motors with Arduino (code) · One Transistor
Stepper Motor Controller with Parallel Port
Controlling Stepper Motors Using Power IO Wildcard, C Library Functions and MOSFET Drivers for Four-phase Six-wire Unipolar Permanent-magnet Stepper Motor