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PIC18 Micro Stepper Motor Controller with IMT 901


4.1 Introduction

4.2 Funktionality

4.3 Remarks

4.4 Download




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4.1 Introduction

The PIC Micro Stepper Motor Controller Card was designed to control stepper motors over a remote connection. Stepper motor controlling is done by the IMT901 (nanotech). Special functionality can easily be implemented in the PIC micro controller. Communication between the controller and a remote control device can be established over RS232 or RS485 connection.


  • Example applications:
    Antenna adjustment, driving of a one axis CNC machine.


  • 1.4 ampere per phase, 1600 steps per rotation can be realized

  • Processor: PIC18F25X (some pin compatible PIC16 can also be used)

  • RS485 or RS232 interface (alternatively)

  • I2C-Bus that can also be used for general purpose

  • 1.4 Ampere (max), max 37V input micro stepper motor controller (1, ½, ¼ and 1/8- steps) with current reduction

  • 2 limit switch inputs with pull up

  • Programming over boot loader if RS232 option is used (no programmer is required)


No remarks.


File type
Schematics for PIC18 Micro Stepper Motor Controller
Part list for PIC18 Micro Stepper Motor Controller


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Version 1.0, ©Gerhard Burger 2004-2013, alle Rechte vorbehalten, letzte Änderung 09.11.2013