Communication between drones in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to send a message from one drone to another.

Drone Programming

drone1.send_message([1])

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Areceive_message()

B"Hello Drone 2"

Cconnect()

Dstatus()

Attempts:

3 left

💡 Hint

Common Mistakes

Using a function call instead of a message string.

Forgetting to put the message in quotes.

The send_message function requires a message string to send. Here, we send "Hello Drone 2".

2fill in blank

medium

Complete the code to receive a message on drone2.

Drone Programming

message = drone2.[1]()

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Asend_message

Bconnect

Creceive_message

Ddisconnect

Attempts:

3 left

💡 Hint

Common Mistakes

Using send_message() instead of receive_message().

Using connection functions instead of message functions.

The receive_message() function is used to get incoming messages on a drone.

3fill in blank

hard

Fix the error in the code to broadcast a message to all drones.

Drone Programming

network.[1]("Start mission")

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Abroadcast_message

Bsend_message

Creceive_message

Dconnect

Attempts:

3 left

💡 Hint

Common Mistakes

Using send_message() which sends to one drone only.

Using receive_message() which is for receiving.

To send a message to all drones, use broadcast_message().

4fill in blank

hard

Fill both blanks to check if drone3 is connected and then send a message.

Drone Programming

if drone3.[1]():
    drone3.[2]("Ready")

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Ais_connected

Bsend_message

Creceive_message

Dconnect

Attempts:

3 left

💡 Hint

Common Mistakes

Using connect() instead of is_connected() to check status.

Using receive_message() instead of send_message() to send.

First, check connection with is_connected(). Then send message with send_message().

5fill in blank

hard

Fill all three blanks to create a dictionary of drone IDs and their last received messages if the message length is greater than 5.

Drone Programming

messages = {drone.[1]: drone.[2]() for drone in fleet if len(drone.[3]()) > 5}

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Aid

Breceive_message

Dsend_message

Attempts:

3 left

💡 Hint

Common Mistakes

Using send_message() instead of receive_message().

Using wrong attribute for drone ID.

Use id for drone ID, receive_message() to get messages, and check length of received message.