Code organization with functions in Arduino - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a function named blinkLED.

Arduino

void [1]() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000);
  digitalWrite(LED_BUILTIN, LOW);
  delay(1000);
}

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

AblinkLED

BstartBlink

CledBlink

DflashLED

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different function name than blinkLED.

Misspelling the function name.

The function is named blinkLED. This name matches the function definition and usage.

2fill in blank

medium

Complete the code to call the function blinkLED inside loop().

Arduino

void loop() {
  [1]();
}

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

AstartBlink

Bdelay

CdigitalWrite

DblinkLED

Attempts:

3 left

💡 Hint

Common Mistakes

Calling a function that does not exist.

Forgetting the parentheses after the function name.

The function blinkLED is called inside loop() to blink the LED repeatedly.

3fill in blank

hard

Fix the error in the function definition by completing the return type.

Arduino

[1] blinkLED() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(1000);
  digitalWrite(LED_BUILTIN, LOW);
  delay(1000);
}

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

Avoid

Bboolean

Cint

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using a return type other than void when no value is returned.

Omitting the return type completely.

The function does not return any value, so its return type should be void.

4fill in blank

hard

Fill in the blank to create a function that takes an integer parameter times and blinks the LED that many times.

Arduino

void blinkLED([1] times) {
  for (int i = 0; i < times; i++) {
    digitalWrite(LED_BUILTIN, HIGH);
    delay(500);
    digitalWrite(LED_BUILTIN, LOW);
    delay(500);
  }
}

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

Aboolean

Bvoid

Cint

Dfloat

Attempts:

3 left

💡 Hint

Common Mistakes

Using void as a parameter type.

Using a floating-point type like float when an integer is needed.

The parameter times is an integer, so its type should be int.

5fill in blank

hard

Fill in the blanks to call blinkLED with the argument 3 inside loop().

Arduino

void loop() {
  [1]([2]);
}

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

AdigitalWrite

B3

CblinkLED

Ddelay

Attempts:

3 left

💡 Hint

Common Mistakes

Calling a wrong function name.

Passing the argument without parentheses.

The function blinkLED is called with the argument 3 to blink the LED three times.