DC motors

Function of H-Bridge in DC motor control is

• Change the speed of the DC motor

• Change the direction of the DC motor

• Send feedback of the speed of the DC motor

• Measures the speed of the DC motor

to make the Motor A rotate backward and Motor B stop

• Pin 9 - GND, Pin 8 - 5V, Pin 7 - GND

  Pin 5 - GND, Pin 4 - GND, Pin 3 - GND

• Pin 9 - 5V, Pin 8 - GND, Pin 7 - 5V

  Pin 5 - GND, Pin 4 - GND, Pin 3 - GND

• Pin 9 - 5V, Pin 8 - 5V, Pin 7 - GND

  Pin 5 - 5V, Pin 4 - GND, Pin 3 - GND

• Pin 9 - GND, Pin 8 - 5V, Pin 7 - 5V

  Pin 5 - GND, Pin 4 - GND, Pin 3 - GND

Speed change of DC motor is controlled by

• Enable pin

• Input pins

• H-bridge

• Output pins

How header file is to be defined to code for servo motors?

• # define Servo

• # include Servo

• #include<Servo.h>

• Servo myservo;

If servo object is myServo and then servo control signal to make 150 degree angle, is coded as

• myServo.write(150);

• myServo.Write(852.5);

• myServo.write(852.5);

• analogWrite(852.5);

Servo signal pin must be connected to

• any digital pin of Arduino

• analog input pins A0 to A5

• any one of the PWM pins

• 5V pin

What are the TRUE differences between this component in the picture and a DC MOTOR?

• This component can turn to specific angle and DC Motors cannot

• This component need 3 wires to connect

• DC Motor can turn to 180 degrees only

• DC Motor needs a signal wire, 5V and GND; this component needs 2 wires only

choose the right order

• output - process - input

• process - output - input

• input - process - output

• input - output - process

Which of the following lines serves the connection of servo motor attachment to pin 9?

• myservo.pinMode(9);

• myservo.attach(9);

• myservoattach(9)

• pinMode(servo,INPUT);

I think I have learned _________ about Arduinos

• nothing at all

• a little bit, but I need to do all of the projects

• Much more, but I still get confused

• A lot so far, this is not difficult