Electronic Speed Controller (ESC) This is an electronic control board that varies the motors speed. It also acts as a dynamic brake. The component still helps the ground pilot to approximate the height at which the drone is running in.
This is attained by gauging the amount of power used by all the motors. Altitude is associated with power drain from the power reservoirs. Flight Control/Board The flight board makes a log of the takeoff place just in case a need arises for the drone to go back to its takeoff location without being guided.