Companion computer integration (Raspberry Pi) in Drone Programming - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a companion computer in drone systems?

A companion computer is a small, powerful computer like a Raspberry Pi that works alongside the drone's main flight controller to handle complex tasks such as image processing, navigation, and communication.

beginner

How does a Raspberry Pi communicate with a drone's flight controller?

The Raspberry Pi usually communicates with the flight controller using serial connections like UART or USB, sending and receiving data such as commands and telemetry.

intermediate

Why use a Raspberry Pi as a companion computer instead of the flight controller alone?

Because Raspberry Pi can run full operating systems and complex software, it can handle advanced tasks like computer vision or AI that the flight controller cannot do efficiently.

intermediate

What software tools are commonly used on Raspberry Pi for drone companion computing?

Common tools include MAVLink for communication, ROS (Robot Operating System) for robotics control, and OpenCV for image processing.

beginner

What is the role of MAVLink in companion computer integration?

MAVLink is a lightweight communication protocol that allows the Raspberry Pi to send commands and receive telemetry data from the flight controller, enabling coordinated control.

What type of connection is commonly used between a Raspberry Pi and a drone's flight controller?

A Serial (UART or USB)

B Wi-Fi only

C Bluetooth only

D Ethernet cable

Serial connections like UART or USB are commonly used for reliable communication between Raspberry Pi and flight controllers.

Which software protocol helps the Raspberry Pi communicate with the flight controller?

A HTTP

B MAVLink

C FTP

D SMTP

MAVLink is the standard protocol for communication between companion computers and flight controllers.

Why is a Raspberry Pi preferred for companion computing over the flight controller alone?

A It is cheaper

B It replaces the flight controller

C It has a bigger battery

D It can run complex software and handle advanced tasks

Raspberry Pi can run full operating systems and complex programs, enabling advanced processing beyond the flight controller's capabilities.

Which of these is NOT a typical task for a Raspberry Pi companion computer on a drone?

A Image processing

B Navigation assistance

C Flight stabilization

D Telemetry data handling

Flight stabilization is usually handled by the flight controller, not the companion computer.

What is ROS commonly used for in Raspberry Pi drone integration?

A Robot Operating System for control and communication

B Operating system for flight controllers

C Image editing software

D Battery management

ROS stands for Robot Operating System and helps manage control, communication, and sensor data on companion computers.

Explain how a Raspberry Pi acts as a companion computer in a drone system and why it is useful.

Think about what the flight controller cannot do alone.

Describe the communication process between a Raspberry Pi and a drone's flight controller.

Focus on how data moves back and forth.