SIMPLE INTERFACE STEPPER MOTOR TO 8051

SIMPLE INTERFACE STEPPER MOTOR TO 8051

In this Program we have interface Stepper motor to 8051. Stepper motor is Driven by L293D IC.

L293D IC need Vss = +12V and Vs = +5V and en1 and en2 are used to enable Push-Pull Driver.

In this method we have used A unipolar Stepper motor.

• A unipolar stepper motor has one winding with centre tap per phase. Each section of windings is switched on for each direction of magnetic field. 

• Since in this arrangement a magnetic pole can be reversed without switching the direction of current, the commutation circuit can be made very simple (e.g., a single transistor) for each winding. 

• Typically, given a phase, the centre tap of each winding is made common: giving three leads per phase and six leads for a typical two phase motor. Often, these two phase commons are internally joined, so the motor has only five leads. 

• A micro controller or stepper motor controller can be used to activate the drive transistors in the right order, and this ease of operation makes unipolar motors popular with hobbyists; they are probably the cheapest way to get precise angular movements.

It Work According to the Table given below:

 

A	B	C	D	De
1	0	0	0	45
1	1	0	0	90
0	1	0	0	135
0	1	1	0	180
0	0	1	0	225
0	0	1	1	270
0	0	0	1	315
1	0	0	1	360 or 0

A = in1

B = in2

C = in3

D = in4

De = Degree of rotation

FOR PROGRAM REFER LINK:Click on this link for code

For videos on above example : click on this link