There are two main ways to change motor direction in a quadcopter. You can either swap the wires, or do it from the software configuration. in this tutorial I will show you how.
Check if your motors are spinning the correct direction
If you are building a new quadcopter, you have to make sure the motors are spinning the correct direction before putting propellers on for your first flight. If one or multiple motors are spinning the wrong direction, the quad will flip over at take off.
This is the default motor spin directions in Betaflight:
If the motor spin direction is wrong, you can easily change it by using one of the following methods.
Swap two of the motor wires
By swapping ANY 2 out of 3 motor wires to the ESC, you can easily reverse the rotation direction of the motor. Doesn’t matter which two, the result would be the same.
Reverse motor direction in BLHeliSuite software
If you don’t like soldering, you can also easily change motor direction in the BLHeliSuite program (if you are using BLHeli_S or BLHeli_32 ESC’s). This program is the configurator for your ESC that allows you to change many different settings, including motor spin direction.
- Download the latest BLHeliSuite from here
- Open BLHeliSuite and connect to your quadcopter to computer via a USB cable
- Plug in a battery to power your quad, then click the “Connect” button in the configurator
- Click “Read Setup” – if you are getting error – this could mean your ESC is either not a BLHeli_32 or BLHeli_S ESC, try the other configurator
- If everything is ok, you will get a summary of the discovered ESC
- In the bottom right corner – select an ESC you want to alter
If Motor Direction was set to “Normal”, you can reverse motor direction by changing it to “Reverse”. And if it was already set to “Reverse”, you just need to change it back to “Normal”. You also have the option to set it to “3D”, which will allow your motor to spin both directions for 3D acro flying. Don’t set it to “3D” unless you know what you are doing.
Further Reading: How to configure your BLHeli_32 ESC using FC pass-through?