Software-In-The-Loop (SITL) concept in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the SITL simulator.

Drone Programming

sitl = dronekit_sitl.SITL()
sitl.[1]()

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

Astart

Brun

Claunch

Dinit

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'run' instead of 'start' causes an attribute error.

Using 'launch' is not a valid method here.

The start() method is used to launch the SITL simulator.

2fill in blank

medium

Complete the code to connect to the vehicle using SITL.

Drone Programming

vehicle = connect('[1]', wait_ready=True)

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

Ahttp://localhost:8080

Budp:127.0.0.1:14550

Cserial:/dev/ttyUSB0:57600

Dtcp:127.0.0.1:5760

Attempts:

3 left

💡 Hint

Common Mistakes

Using TCP or serial connection strings will not connect to SITL.

HTTP is not used for vehicle connection here.

The SITL usually connects via UDP on port 14550.

3fill in blank

hard

Fix the error in the code to stop the SITL simulator.

Drone Programming

sitl.[1]()

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

Aterminate

Bshutdown

Cclose

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'shutdown' or 'terminate' causes attribute errors.

Using 'close' is not defined for SITL.

The correct method to stop the SITL simulator is stop().

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps vehicle modes to descriptions if the mode name length is greater than 4.

Drone Programming

mode_descriptions = {mode: desc for mode, desc in modes.items() if len(mode) [1] [2]

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

A>

B==

C4

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '>' changes the filter logic.

Using 3 instead of 4 changes the length condition.

The condition checks if the length of the mode name is greater than 4.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase mode names to their descriptions only if the description length is greater than 10.

Drone Programming

filtered_modes = {mode[1]: desc for mode, desc in modes.items() if len(desc) [2] [3]

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

A.upper()

B>

C10

D.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using '.lower()' instead of '.upper()' changes the case.

Using '<' instead of '>' changes the filter condition.

The comprehension converts mode names to uppercase and filters descriptions longer than 10 characters.