First GPIO program (LED blink) in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the GPIO library.

Raspberry Pi

import [1] as GPIO

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

Aos

Btime

CRPi.GPIO

Dsys

Attempts:

3 left

💡 Hint

Common Mistakes

Importing 'time' instead of 'RPi.GPIO'.

Using 'os' or 'sys' which are unrelated to GPIO.

The RPi.GPIO library is used to control the GPIO pins on a Raspberry Pi.

2fill in blank

medium

Complete the code to set the GPIO mode to BCM numbering.

Raspberry Pi

GPIO.setmode([1])

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

AGPIO.BCM

BGPIO.BOARD

CGPIO.OUT

DGPIO.IN

Attempts:

3 left

💡 Hint

Common Mistakes

Using GPIO.BOARD instead of GPIO.BCM.

Confusing GPIO.OUT or GPIO.IN as mode settings.

GPIO.BCM sets the pin numbering to use the Broadcom chip-specific numbering.

3fill in blank

hard

Fix the error in setting up pin 18 as an output.

Raspberry Pi

GPIO.setup(18, [1])

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

AGPIO.OUT

BGPIO.PWM

CGPIO.INPUT

DGPIO.IN

Attempts:

3 left

💡 Hint

Common Mistakes

Using GPIO.IN or GPIO.INPUT instead of GPIO.OUT.

Using GPIO.PWM which is for pulse-width modulation, not basic output.

GPIO.OUT configures the pin as an output pin to control the LED.

4fill in blank

hard

Fill both blanks to turn the LED on and then off.

Raspberry Pi

GPIO.output(18, [1])
time.sleep(1)
GPIO.output(18, [2])

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

AGPIO.HIGH

BGPIO.LOW

CGPIO.OUT

DGPIO.IN

Attempts:

3 left

💡 Hint

Common Mistakes

Using GPIO.OUT or GPIO.IN as output values.

Reversing HIGH and LOW.

GPIO.HIGH turns the LED on, GPIO.LOW turns it off.

5fill in blank

hard

Fill the blanks to clean up GPIO after blinking.

Raspberry Pi

try:
    GPIO.output(18, [1])
finally:
    GPIO.[2]()

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

AGPIO.HIGH

Bcleanup

Csetmode

DGPIO.LOW

Attempts:

3 left

💡 Hint

Common Mistakes

Not calling GPIO.cleanup() after use.

Using GPIO.HIGH instead of GPIO.LOW to turn off LED.

Turn LED off with GPIO.LOW, then call GPIO.cleanup() to reset pins.