Tutorials

• Basic Stepping Motor Control Circuits     
• Control of Stepping Motors, a tutorial - what you neet to know about stepper motors, also at     
• Controlling Stepper Motors with a PIC Microcontroller - This article will explain the operating principals of stepper motors, and will give instructions on how to control them via a PIC16F84 microcontroller to perform many functions.     
• Current Control in Stepper Motors - There are many ways to control current in stepper motors. One of them is to use pulse width modulation (PWM) to provide constant current drive.     
• FAQ File - Stepper Motors - zipped text file     
• Hardware Stepperboard - this article shows clearly unipolar stepper motor full step and half step sequences, shows also bipolar stepper motor full step sequence     
• How Stepper Motors Work     
• Stepper Motor Driving - Application note     
• Stepper motors - how to connect to pc and useful link collection     
• STEPPER MOTOR Information and Technical Forum     
• Stepper motor references     
• Understand Stepper Parameters Before Making Measurements - torque, accuracy, and resolution are the key specs highlighting stepper-motor performance     
• Use disk drive motors in our projects - use stepper motors and controllers from old disk drives     
• Working With Stepper Motors - This page is divided into several sections from introduction to control hardware and software examples.     
   

Stepper controllers

• Construction of a diy motorized volume control - Construction of a motorized potentiometer using a stepper motor for remote controlling/positioning of a standard audio preamplifier volume potentiometer (or whatever).   
• First Stepper Circuit - PIC based simple stepper controller   
• Remote two wire positioner - Send power to a remote stepper motor and also control its rotation and speed over only two wires, pdf file   
• Rotary controller positions stepping motor - uses a servo potentiometer to provide the necessary drive pulses for a stepping motor   
• Stepper Motor Controller - very simple and inexpensive circuit built from standard components and can easily be adapted to be controlled by a computer   
• Unipolar Stepper Motor Driver kit - Drives any 5, 6 or 8 lead unipolar stepper motor. Based on the UCN5804 IC. All features of this IC (direction, on/off, phase control & half step) are brought out to SPDT PCB-mounted switches.Three run modes supported.   
   

Computer interface for steppers

• A Worked Stepping Motor Example - running stepper motors using PC parallel port and some electronics   
• Dual Stepper Motor Controller - Connects to the PC printer port & will drive two stepper motors up to max. 3A each. All contained in an extended D-shell case. Will also accept 4 inputs from external switches.   
• PC's BIOS interrupt drives twin stepper motors - design idea for computer controlled stepper motor system   
• Slot machine sheet stepper motor controls - Stepper motor driver stage for two stepper motors using two L297 driver ICs. This circuit take control bits from computer parallel port or other I/O port with TTL signals.   
• Software for Stepper Motor Control - Simple stepper motor controlling software examples using C, C++, Turbo Pascal, Basic and MswLogo programming languages. This page has also link the the simple motor driver hardware suitable for the software.  
• Stepper Motor Control program Step - Step is a little utility that allows you to drive up to two 4-phase unipolar stepper motors connected to the parallel port. It can do absolute (to a certain angular position) or relative (clockwise or counter- clockwise by a certain angle) movement at every speed. Angles may be measured in steps, degrees or revolutions, and movements can be in wave, two-phase, or half-step mode. This program is made for POSIX / Linux systems. The program documentation includes also the driver hardware circuit diagram and circuit board design.   
• Stepper motors - how to connect to pc and useful link collection   

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