Arduino IDE and motors

Name the Motor Driver you used to build your Robot?

• L298P

• L293D

• L298N

• Mx304

How do you connect a DC motor to the L298N motor driver?

• Connect the motor terminals to IN1 and IN2, and ENA to OUT1.

• Connect the motor to the power supply and the L298N to the microcontroller.

• Connect the motor terminals to OUT1 and OUT2, IN1 and IN2 to the microcontroller, ENA to a PWM pin, and power the L298N.

• Power the L298N directly from the motor terminals.

How many DC motors can a single L298N control at the same time?

• 1

• 2

• 3

• 4

Which function sets the motor speed in the L298N library?

• digitalWrite()
  
  
  

• setSpeed()

• motorSpeed()

• analogWrite()

#include <L298N.h>

L298N motor(10, 8, 9); // ENA, IN1, IN2

void setup() {

motor.setSpeed(200);

motor.forward();

}

void loop() { }

• Run motor backward at speed 200

• Run motor forward at speed 200

• Stop the motor

• Run motor forward at full speed

motor.setSpeed(255);

motor.backward();

delay(2000);

motor.forward();

delay(2000);

motor.stop();

• Motor runs forward for 2s, backward for 2s, then stops
  

• Motor runs backward for 2s, forward for 2s, then stops

• Motor stops immediately

• Motor alternates direction forever

How many times will this loop run?

for (int i = 0; i < 5; i++) { Serial.println(i); }

• 3

• 5

• 4

• 6

What will be printed in Serial Monitor?

for (int x = 2; x <= 6; x++) { Serial.println(x); }

• 2 3 4 5
  

• 2 3 4 5 6

• 3 4 5 6

• 2 4 6

Why might this loop not run at all?

for (int i = 10; i < 5; i++) { Serial.println(i); }

• The start value is greater than the end condition
  

• The step is wrong

• The semicolons are missing

• The Serial.begin() is missing

What will this code do?

for (int speed = 0; speed <= 255; speed += 51)

{ motor.setSpeed(speed);

motor.forward();

delay(500); }

• Motor stays at full speed

• Motor gradually increases speed in steps

• Motor moves forward once at speed 255

• Motor moves backward in steps