LED-based debugging patterns in Embedded C - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to turn on the LED connected to pin 13.

Embedded C

digitalWrite([1], HIGH);

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

A13

B12

C10

D9

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong pin number will not light the LED.

The LED is connected to pin 13, so we use 13 to turn it on.

2fill in blank

medium

Complete the code to blink the LED by turning it off.

Embedded C

digitalWrite(13, [1]);

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

AOFF

BHIGH

CON

DLOW

Attempts:

3 left

💡 Hint

Common Mistakes

Using HIGH will keep the LED on.

To turn off the LED, we set the pin to LOW.

3fill in blank

hard

Fix the error in the code to set pin 13 as output.

Embedded C

pinMode([1], OUTPUT);

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

A12

BINPUT

C13

DHIGH

Attempts:

3 left

💡 Hint

Common Mistakes

Using INPUT instead of OUTPUT.

Pin 13 must be set as OUTPUT to control the LED.

4fill in blank

hard

Fill both blanks to create a pattern that turns the LED on and off with delay.

Embedded C

digitalWrite([1], HIGH);
delay([2]);

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

A13

B1000

C500

D12

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong pin or delay time.

Pin 13 controls the LED, and delay(1000) waits 1 second.

5fill in blank

hard

Fill all three blanks to complete the LED blink loop.

Embedded C

pinMode([1], OUTPUT);
while(1) {
  digitalWrite([2], HIGH);
  delay([3]);
}

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

A13

C500

D12

Attempts:

3 left

💡 Hint

Common Mistakes

Using different pins or wrong delay time.

Pin 13 is set as output and used to blink the LED every 500 ms.