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How To Build A FPV Racing Quadcopter

Step 1-1  Step 1-2    Step 2  Step 3  Step 4  Step 5  Step 6  Step 7-1  Step 7-2  Step 8  Step 9-1  Step 9-2  Step 9-3  Step 9-4  Step 9-5  

Step 9-4: Configuring Our Quadcopter Racer With Open Pilot (continued)

Open Pilot Output Calibration motor 1

The motor calibration procedure begins with motor one which is M1 in our build. In this screen notice that a red arrow indicates the front of the quadcopter. The first motor then is the front left if you are standing above and behind the quadcopter (above photo).

In this procedure we want to find the neutral rate for each motor and also verify that each individual motor is rotating in the correct direction. To make it easier to see the direction of rotation we usually put some masking tape on the shaft of each motor. If you find that your motor is rotating in the wrong direction, simply change ANY two of the wires at the ESC | motor connection. Doing this will not harm the motor or the ESC.

To begin with the first motor (M1 in our case) click the START button and move the slider to the right until the motor starts to spin stable. Also verify that this motor is rotating in a CLOCKWISE direction. On our particular M1 motor the output value is 1060, yours may be different. We also verified that it is turning in a CLOCKWISE direction. Click STOP to stop the motor and if you are satisfied with the results you can click NEXT to proceed to motor 2. HINT: Once each motor begins to spin in a stable fashion, the increments can be fine tuned by using the arrow keys on your keyboard!

Open Pilot Output Calibration motor 1-1

Continue on calibrating the output values for each motor ensuring that each spins in the direction of the orange | blue arrows on the accompanying screens, which will be as follows:

  • Motor 1 (M1)- clockwise
  • Motor 2 (M2)- counter clockwise
  • Motor 3 (M3)- clockwise
  • Motor 4 (M4)- counter clockwise

When the output values have been set for each of the four motors and the rotation of each verified and corrected (if need be). We come to the INITIAL TUNING screen. In this screen we are going to choose the airframe that is the closest to our build. In our case, we will scroll down and pick QAV250 (below photo) and then click NEXT.

Open Pilot Initial Tuning screen
Open Pilot ESC Calibration Procedure 2

Clicking the next button brings us to the last screen for this stage of the configuration procedure. At the SAVE screen we only need to click the SAVE button to save our configuration to our CC3D flight controller (above photo).

Open Pilot Save Configuration screen
Open Pilot Transmitter Setup Wizard screen

When the configuration is saved to the board, the wizard will reboot the board and return you to the TRANSMITTER SETUP WIZARD (above photo) where we will configure our radio to work with the flight controller. Note: The transmitter setup wizard has a different purpose than the radio setup procedure we did earlier in our build.