Automated plant watering system in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the GPIO library for Raspberry Pi.

Raspberry Pi

import [1] as GPIO

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ARPi.GPIO

Bgpiozero

Ctime

Dos

Attempts:

3 left

💡 Hint

Common Mistakes

Importing unrelated libraries like 'time' or 'os'.

Using 'gpiozero' which is a different GPIO library.

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

2fill in blank

medium

Complete the code to set GPIO pin 18 as an output pin.

Raspberry Pi

GPIO.setmode(GPIO.BCM)
GPIO.setup([1], GPIO.OUT)

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A17

B18

C27

D22

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong pin numbers like 17 or 22.

Not setting the pin as output.

Pin 18 is set as output to control the water pump.

3fill in blank

hard

Fix the error in the code to read moisture sensor value from pin 23.

Raspberry Pi

GPIO.setup(23, GPIO.IN)
moisture = GPIO.[1](23)

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Aoutput

Bread

Cinput

Dinput_read

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'output' instead of 'input'.

Using non-existent methods like 'read' or 'input_read'.

Use GPIO.input(pin) to read digital input from a pin.

4fill in blank

hard

Fill both blanks to turn on the water pump when soil is dry.

Raspberry Pi

if moisture [1] 0:
    GPIO.output([2], GPIO.HIGH)

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A==

B!=

C18

D23

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' instead of '=='.

Using wrong pin number for pump.

If moisture sensor reads 0 (dry), turn on pump at pin 18.

5fill in blank

hard

Fill both blanks to create a dictionary of sensor readings with pin as key and value as moisture.

Raspberry Pi

sensor_data = {[2]: [1] for [3] in [23, 24, 25]}

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A{

BGPIO.input(pin)

Cpin

D}

Attempts:

3 left

💡 Hint

Common Mistakes

Using list brackets instead of dictionary braces.

Using wrong variable names.

This dictionary comprehension reads moisture from pins 23, 24, and 25.