for any question ask me : mahmoud.ahmed2013@gmail.com

1. Motors types
BY : Mahmoud Hussein

2. Motor types
 DC motor
 Servo motor
 Stepper motor
 Ac motor

3. Motor types
 DC motor:

4. DC Motor
 DC Motor with Arduino connection

5. DC Motor
 DC Motor with Arduino programming
 void setup() {
 pinMode(7,OUTPUT);
 pinMode(8,OUTPUT);
 pinMode(9,OUTPUT);
 }
 void loop() {
 digitalWrite(7,HIGH);
 digitalWrite(8,LOW);
 analogWrite(9,100);
 delay(1000);
 digitalWrite(8,HIGH);
 digitalWrite(7,LOW);
 analogWrite(9,255);
 delay(1000);
 }

6. Servo motor
 A servomotor is a rotary actuator or linear actuator that allows for precise control
of angular or linear position, velocity and acceleration. It consists of a suitable
motor coupled to a sensor for position feedback.
 Servomotors are not a specific class of motor although the term servomotor is
often used to refer to a motor suitable for use in a closed-loop control system.
 Servomotors are used in applications such as robotics, CNC
machinery or automated manufacturing.

7. servo Motor
 servo Motor with Arduino connection

8. servo Motor
 servo Motor with Arduino connection

9. Servo Motor
 Servo Motor with Arduino programming

10. Stepper motor
 Stepper motors are DC motors that move in discrete steps. They have multiple coils
that are organized in groups called "phases". By energizing each phase in
sequence, the motor will rotate, one step at a time.
 With a computer controlled stepping you can achieve very precise positioning
and/or speed control. For this reason, stepper motors are the motor of choice for
many precision motion control applications.
 What are stepper motors good for?
 Positioning
 Speed Control
 Low Speed Torque: stepper has max torque at low speed

11. Stepper motor

12. Stepper motor types
 Based on size:
 Nema 14
 Nema 17
 Nema 23
 Nemq 34
 Nema 57
 Based on step count:The next thing to consider is the positioning resolution you
require. The number of steps per revolution ranges from 4 to 400. Commonly
available step counts are 24, 48 and 200.
 Resolution is often expressed as degrees per step. A 1.8° motor is the same as a
200 step/revolution motor.

13. Stepper motor types
 Gearing :
 Another way to achieve high positioning resolution is with gearing. A 32:1 gear-
train applied to the output of an 8-steps/revolution motor will result in a 512 step
motor.
 A gear train will also increase the torque of the motor. Some tiny geared steppers
are capable of impressive torque
 Wiring

14. Bipolar VS unipolar
 Unipolar drivers, always energize the phases in the same way. One lead, the
"common" lead, will always be negative. The other lead will always be positive.
Unipolar drivers can be implemented with simple transistor circuitry. The
disadvantage is that there is less available torque because only half of the coils can
be energized at a time.
 Bipolar drivers use H-bridge circuitry to actually reverse the current flow through
the phases. By energizing the phases with alternating the polarity, all the coils can
be put to work turning the motor.

15. Stepper motor connection

16. Stepper motor wiring

17. Stepper motor programming

18. Ultrasonic sensor with Arduino

19. Ultrasonic sensor with Arduino

20. Robot with ultrasonic sensor for avoiding
obstacles

21. Robot with ultrasonic sensor for avoiding
obstacles

22. Robot with ultrasonic sensor for avoiding
obstacles

23. Robot avoid obstacles more intelligent

24. Robot avoid obstacles more intelligent

25. Build a program to turn on and off one motor
Programming . . .
25

26. Build a program to turn on one motor back and forth
Programming . . .
26

27. Build a program to turn on two motors back and forth
Programming . . .
27

28. Build a program to make the robot rotate clockwise and
counterclockwise.
Programming . . .
28

29. Build a program to turn on one motor using PWM
Programming . . .
29

30. Build a program to read the tracking sensor
Programming . . .
30

31. Build a program to show the signal coming from the
tracking sensor (one signal)
Programming . . .
31

32. Build a program to show the signals coming from the
tracking sensor (two signals)
Programming . . .
32

33. Build a program to turn on a led if the sensor detects a
barrier.
Programming . . .
33

34. Programming . . .
34

35. Line tracking robot
 Components:
• Plate
• Two dc motors.
• Two wheels
• Caster wheel
• 3 IR sensors.
• Arduino uno
• Motor driver

36. Line tracking robot

37. Line tracking robot

38. Line tracking robot

39. Line tracking robot

40. Line tracking robot

41. Line tracking robot

42. Line tracking robot with servo

43. Project