This document presents a seminar on designing a stepper motor controller using a microcontroller. The project aims to control a stepper motor clockwise and counterclockwise using infrared technology. It discusses interfacing a stepper motor with an 8051 microcontroller to accurately control the motor's rotation, direction, speed, and number of revolutions. Applications of stepper motors mentioned include 3D printing, textile machinery, printing presses, gaming machines, and medical imaging equipment.

1. NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)
GUIDED BY:- MR.HARSHAL NIKAM
PRESENTED BY :
ASHISH SADAVARTI
MICROPROJECT SEMINAR ON
TITLE:- STEPPER MOTOR CONTROLLER USING
MICROCONTROLLER

2. AIM AND OBJECTIVE
INTRODUCTION
COURSE OUTCOME
PROGRAM OUTCOME (PO) ACHIEVED
DIAGRAM
WORKING / PROCEDURE
RESOURCES USED
APPLICATIONS
SKILL DEVELOPED
REFERENCES
CONTENTS
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

3. AIM AND OBJECTIVE
 this project is to design microcontroller based clock wise
and anticlockwise
 Stepper motor controller using infra red technology.
 Run the circuit in proper way.
 Maintain the microcontroller use in different application.
 Develop basic technical knowledge relevant stepper motor
when over.
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

4. INTRODUCTION
 Stepper motor are used for precision position control in
many applications like floppy driver printers , process
control instrument, robotics and machine tool control.
 There is a microcontroller AT89C51- based stepper
Controller that can accurately control the rotation and
direction speed and number of revolution with help of six.
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

5. COURSE OUTCOME
 Understand the features of microcontroller.
 Develop the skill to construct and mount the component
on PCB.
 Trouble shoot specified application.
 Apply the knowledge to build the circuit carefully and
error less.
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

6. PROGRAM OUTCOME (PO) ACHIEVED
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)
CO'
S
PO
1
PO
2
PO
3
PO
4
PO5 PO
6
PO
7
PO
8
PO
9
PO
10
Pso
1
Pos
2
CO
1
1 3 1 _ _ _ _ _ 2 3 1 1
CO
2
1 3 3 2 1 _ _ 3 3 2 2 1
CO
3
2 3 2 _ _ _ _ 3 3 2 1 2
CO
4
3 3 1 1 _ _ _ 3 3 2 1 3

7. DIAGRAM
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

8. WORKING / PROCEDURE
• Interfacing with 8051 is very easy we just need to give the
0 and 1 to the four wires of stepper motor according to the
above tables depending on which mode we want to run the
stepper motor.
• And rest two wires should be connected to a proper 12v
supply (depending on the stepper motor).
• Here we have used the unipolar stepper motor.
• We have connected four ends of the coils to the first four
pins of port 2 of 8051 through the ULN2003A.
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

9. RESOURCES USED
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)
Name of Resources Specifications Quantity
Stepper motor Unipolar 1
Step down
transformer
230/12V 1
Resistor 10kohm 1
Capacitor C1=22pf,
C2=22pf,C3=10uf
1

10. APPLICATION
 APPLICATIONS
 3D printing equipment.
 Textile machines.
 Printing presses.
 Gaming machine.
 Medical imaging machinery.
 Small robotics.
 CNC milling machine.
 Welding equipment.
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

11. SKILL DEVELOPED
 Complex problem-solving skills and a methodical mind.
 Critical thinking.
 Strong interest technology.
 Communication skills.
 Strong IT skills.
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

12. REFERENCES
 http://en.wikipedia.org/wiki/Stepper motor.
 https://www.jameco.com/Jameco/Products/ProfDS/155433
.pdf.
 http://www.youtube.com/watch?v=TWMai3oirnM.
 The 8051 Microcontroller and Embedded system Using
Assembly and C-Muhammad Ali Mazid,Janice Gillispe
Maziidi, Rolin D. Mckinlay -Pearson /Prentice Hall , ,
second edition. Delhi,2008,ISBN 978-8177589030.
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)

13. Thank you
NIT POLYTECHNIC NAGPUR
(An NBAAccredited Institute)
(DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION
ENGINEERING)