Summary
In this chapter, we have gone through different firmware and covered the structure and architecture of PX4 and ArduPilot, firmware that would help you to potentially know about the building blocks of the flight stack of the drone. We have also referenced the open source firmware stack PX4 and ArduPilot, which are leaders in the drone world.
In the next chapter, we will learn about the GCS and its operation, which will help in configuring the drone and flying autonomous missions.