Servo angle positioning in Arduino - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to include the Servo library.

Arduino

#include [1]

Drag options to blanks, or click blank then click option'

A<Servo.h>

B<Servo>

C"Servo.h"

D<servo.h>

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes instead of angle brackets

Misspelling the library name

Using lowercase letters in the filename

The Servo library is included with #include <Servo.h> to control servo motors.

2fill in blank

medium

Complete the code to attach the servo to pin 9.

Arduino

servo.[1](9);

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Aconnect

Bstart

Cbegin

Dattach

Attempts:

3 left

💡 Hint

Common Mistakes

Using connect() instead of attach()

Using begin() or start() which are not servo methods

The attach() method connects the servo object to the specified pin.

3fill in blank

hard

Fix the error in the code to write 90 degrees to the servo.

Arduino

servo.[1](90);

Drag options to blanks, or click blank then click option'

AwriteAngle

Bwrite

CsetAngle

Dmove

Attempts:

3 left

💡 Hint

Common Mistakes

Using writeAngle() or setAngle() which do not exist

Using move() which is not a Servo method

The correct method to set the servo angle is write().

4fill in blank

hard

Fill both blanks to create a loop that moves the servo from 0 to 180 degrees in steps of 30.

Arduino

for (int angle = [1]; angle <= [2]; angle += 30) {
  servo.write(angle);
  delay(500);
}

Drag options to blanks, or click blank then click option'

A0

B180

C90

D360

Attempts:

3 left

💡 Hint

Common Mistakes

Using 90 as start or end angle

Using 360 which is beyond servo range

The loop starts at 0 degrees and goes up to 180 degrees to cover the servo's range.

5fill in blank

hard

Fill all three blanks to create a dictionary-like mapping of angles to delay times and move the servo only if delay is greater than 300 ms.

Arduino

int delays[] = {100, 400, 600};
for (int i = 0; i < 3; i++) {
  int angle = [1];
  int delayTime = delays[i];
  if (delayTime [2] 300) {
    servo.[3](angle);
    delay(delayTime);
  }
}

Drag options to blanks, or click blank then click option'

Ai * 60

B>

Cwrite

Di + 30

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' instead of '*' for angle calculation

Using '<' instead of '>' in the if condition

Using move() instead of write() for servo

We calculate angle as i*60, check if delayTime > 300, and use write() to move the servo.