Sensor Calibration

The PX4FMU sensors can be calibrated with the buttons on the right. Gyroscope (GYRO) and Accelerometer (ACCEL) calibrations have to be performed with a static, unmoved system. The magnetometer calibration needs to be performed while moving the device.

Magnetometer Calibration

Carefully follow the instructions. Click on MAG to start the calibration. Watch the communication console for further instructions (Available through Main Menu -> Tool Widgets -> Communication Console). Do not calibrate the vehicle in vincinity of metal, e.g. from a table or chair. Start the calibration, leave the system unmoved on the table. Wait for the double beep. Next move the system in a figure eight, roll and pitch it strongly, rotate around all axes and perform the figure eight also upside-down. The calibration is finished after the triple beep.

Accelerometer Calibration

Put the system on an absolutely level surface and press ACCEL, wait for the the triple beep. Do not move the system. If no flat surface is available, rather not calibrate the system.

Gyroscope Calibration

The orientation is not important for this calibration, but do not move the system until the triple beep or the matching text message in the console.