All the parts of a drone are essential since they make one have a comfortable and safe flight. Getting to know the components of a drone is necessary. This will give you a lot of confidence while flying. With the knowledge of the drone parts, it will be straightforward for you to know which component has a problem and needs to be inspected. Moreover, you will be able to check on a regular basis and get to know which drone parts can be replaced or upgraded. Therefore if it happens that you have any flight problems, knowing what each element does will significantly help you to solve the flying issues. Most drone propellers are plastic made, but the ones with better quality are of carbon fiber. Therefore, for more safety, you can add drone prop guards who are needed especially if you are flying near people.
The central hub is the first drone part in which booms out radiate like spokes on a wheel. You need to note that the central drone body part houses battery, mainboards, processors avionics and sensors. There being that most drones are waterproof it is vital that the internal components of the main body do not get wet. So in case of a hard landing, it may not break the shape of the drone, but the shock could damage the internal drone components in the main body. In case you have not familiarized with soldering and engineering, then it not right to learn about internal components such as the main board in your drone. To gain more knowledge on the importance of drones, go to https://en.wikipedia.org/wiki/Drone.
Secondly, there is the electronic speed controller which is an electronic circuit with the purpose of varying electronic motors speed. To add on this, it acts as a dynamic brake and varies electric motors direction. The automatic speed controllers are component of modern, and they offer high power, high frequency and also high resolution. Furthermore, there is the flight controller device. This interprets input from the receiver, GPS module, battery monitor, and other onboard sensors. The flight controller regulates motor speed to provide steering as well as triggering cameras or other payloads. Read more info!
There is also the battery monitor which provides in-flight power level that is in monitoring flight controller. The battery is very critical for flying safely in that when you fly too far, and your quadcopter runs out of cell then it will make an emergency landing, or it will crash. There is also the Gimbal which is the pivoting mount and rotates about to bring tabulation and pointing of cameras or other sensors. Finally, there is the GPS module which combines GPS receiver and magnetometer to provide longitude, latitude, elevation and even compass heading from a single device. Check this site!