How to simulate a Stepper Motor in EDWinXP?

A stepper motor is a motor which rotates by making angular steps. Here a unipolar motor is given. It can be used in various applications.

The different parameters of the Stepper motor are>

Internal resistance

Maximum supply voltage

Minimum supply voltage

Maximum Current through coil

Minimum Current for exciting coil

The different components used in this circuit are

1. 8051 Microcontroller

2. ULN2001A – Darlington Array

3. Stepper Motor

4. DC Voltage Source

A clock generator signal is fed to the XTAL pin of the microcontroller. Here a repeatable pattern with low 50n and high 50n is supplied.

The source code for 8051 – microcontroller is as given below

#include<8051.h> // This header file is included for all 8051 projects.
#define DELAY 10
void Delay(int Time);
void main()
{
repeat: // This loop is given to repeat the sequence outputting into the stepper motor.
P2= 1; // Port2 outputting the sequence 0001
Delay(DELAY);
P2= 2; // Port2 outputting the sequence 0010
Delay(DELAY);
P2= 4; // Port2 outputting the sequence 0100
Delay(DELAY);
P2= 8; // Port2 outputting the sequence 1000
Delay(DELAY);
goto repeat; // Repeat the sequence
}
// Delay function is to provide delay between two steps.
void Delay(int Time)
{
while (Time--);
}