The drone can only be operated smoothly after it has been configured. And it needs to be done correctly, taking into account important parameters and goals. In this article, we'll look at what mistakes beginners make during their first FPV drone settings and ways to avoid them. This includes both technical and software aspects that can cause damage to the machine or cause dangerous situations during use. 

FPV drones: the relevance of UAVs and why it is important to avoid mistakes when setting up

Until recently, they were convenient and functional aircraft for entertainment and sports racing. Today, they are one of the most powerful tools in modern warfare. FPV drones have gained popularity in a difficult time - when they are most needed. Their ability to transmit high-quality images in real time and perform the functions of a weapon have put these devices on a par with weapons of destruction and reconnaissance. Incorrect configuration can lead to the destruction of the drone before it reaches the target or to significant errors in its operation - and this is not the best experience in a military confrontation, when every weapon is worth its weight in gold. 

What mistakes are most often made when setting up a drone: TOP 10

Let's consider them in the format “error-consequences-solutions”. 

Ignoring accelerometer and flight controller calibration

This error can lead to an inadequate response of the UAV to sticks, because without accurate calibration, the device will be pulled to the side or along the pitch axis. To avoid this problem, you should always calibrate the accelerometer in Betaflight (or other) firmware after installation and do it on a flat surface.

Missing or incorrect controller firmware (Betaflight/INAV)

An error when choosing the firmware version to install leads to the fact that the device will simply not function and respond to commands. To avoid problems, before flashing the controller, double-check the model of your FC (target) and check its compatibility. We recommend using Betaflight/INAV Configurator and only official documentation.

Error when setting motor rotation

You will get a drone that is uncontrollable because its motors are rotating in the wrong direction. To avoid this problem, remember: the motors must rotate CW/CCW. You can change the direction (if the wrong setting has already been made) in Betaflight/INAV Configurator or ESC Configurator.

Incorrect connection or confusion when connecting the ESC to the FS

If the motors are connected correctly, this is not a guarantee of their coordinated operation. It is possible to make a mistake with the numbers. This leads to a rollover in flight. Betaflight will help you fix the error: check the order of the motors and, if necessary, use the remapping function. 

No connection between the control unit and the receiver at all

In this case, the aircraft will not respond to commands. To resolve the issue, check the communication protocols, reconnect the wires, and perform a bind procedure.

Incorrectly positioned antennas

This may result in signal loss or weakness during flight. Important: the antennas must be positioned at an angle of 900. Try to place them away from the carbon and ESC. You can use plastic clips and heat shrink.

Ignoring pre-flight checks

Before releasing the “bird” into the sky, it is worth taking the time to check its performance and the absence of errors. All of them can lead to an emergency. Create a checklist and use it before each launch - check the screws, batteries, video signal, and the device's response to sticks. 

Incorrect installation of screws

If the screws are installed in the wrong order, the drone will not be able to take off or will crash immediately after takeoff. When installing, pay attention to the rotation arrows and the shape of the blades. If the edge is curved, the propeller will rake the air down. 

Insufficient cooling of the video transmitter

In this case, the system may overheat and the VTX will fail very quickly, so it is necessary to operate at low power (pit mode or Pit-mode) or with cooling during the setup. Do not allow prolonged power supply without air cooling. 

Lack of failsafe configuration

This can cause the drone to continue moving after a signal loss. We recommend installing failsafe in Betaflight and testing it.

Summarising tips for beginners

How to avoid mistakes when setting up an FPV drone? Be attentive to the details, take your time, and realise that all the details are important in this work:

  • Set up everything gradually, checking each stage.
  • Do not ignore the documentation for the FC, ESC, and receiver.
  • Check all changes on the ground, without propellers!
  • Create a checklist for your pre-flight inspection.
  • Take your time - it's better to spend an extra hour setting up the drone than to lose it on the first day.

Safety comes first. Training - for example, at the Armdrones School of Drone Engineering and Control - will help you avoid mistakes. The experience gained will help you avoid making mistakes and use the drones in the most efficient way.