![]() On fixed wing drones this easy since it can only fly in one direction.īAM050_BMC050_2~1_w734.jpg 734×295 74.3 KBĬompass sensors are very sensitive to magnetic interference. This sensor is important for multi rotor drones because the accelerometer and gyroscope sensors are not enough to let the flight controller know what direction the drone is facing. The compass sensor, or magnetometer if you want to sound fancy, measures the magnetic force, just like a compass. By combining these measurements the flight controller is able to calculate the drones current attitude (angle it is flying at) and perform necessary corrections. The accelerometer measures acceleration forces, and the gyro measures rotational forces. These are the intertial sensors on your drone. Usually the largest chip with the most connectors on your flight controller is the main processor Accelerometer and Gyroscope Most flight controllers have 32bit processors which are more powerful that than 8bit systems, but there are still a few popular 8 bit autopilot platforms such as ardupilot mega which can be found online very cheaply. This is the central unit that runs the autopilot firmware and performs all the calculations. The flight controller reads all of the sensor data and calculates the best commands to send to your drone in order for it to fly. The flight controller is the brains of your drone. Whereas something like a mapping drone will have any autopilot system which includes a flight controller and other equipment such as GPS that will keep the aircraft stable while working out where it is and where it needs to go.ġ5pixhack-autopilot.jpg 1485×1125 231 KB Flight Controller However depending on who you talk to many people use these two words interchangeably.Īs an example on most mini racing quadcopters you use a flight controller that helps keep your craft stable and constantly calculates the best command to send the motors based on the pilot input. There is no fixed definition but I like to refer to an autopilot as a complete system that enables your drone to fly autonomously to way-points etc…, And a flight controller is just the device that will keep your aircraft stable. Flight Controller or Autopilot, whats the difference? I will also discuss the various types and categories of flight controllers. ![]() Here we will discuss what an autopilot is and the important factors you should consider when buying one for your drone. ![]()
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