I am about to configure my first drone with a Pixhawk. Unfortunately I don’t get to the point that the quadcopter takes off and now I hope to find the help I need here.
Here are the key data of the drone:
Pixhawk 4 flight controller
PM07 Power Distribution Board
Pixhawk 4 GPS module
Holybro Telemetry Radio 433 MHz
T-Motor Air Gear 350 + matching ESC’s
FRSKY X7 Taranis Q
FRSKY RX8R Pro
With the qGroundControl version 4.1.3 i have completed the firmware setup.
I chose “Quadrotor Wide” as airframe. I think my self-designed frame belongs in this category.
I configured all sensors (Compass, Gyroscope, Accelerometer, Level Horizon and Orientations) according to the manual. When I reboot the summary reports green for the sensors.
I finished the radio setup (Mode 2). If I move the transmitter’s analog sticks, everything also works correctly in qGroundcontrol.
I configured the transmitter with OpenTX Companion. SF is supposed to be the arming switch. In QGC I went to Multi Channel Mode Selection. Here the configuration looks like this:
- Stabilized / Man (Channel 5)
- Assist (Channel 5)
- Auto (Channel 5)
- Altitude (Channel 6)
- Position (Channel 6)
- Mission (Channel 8)
- Hold (Channel 8)
All others are disabled. If the drone is connected via USB and the transmitter is also on, the flight modes can be switched cleanly.
I chose Power Module within the Power Setup. The number of cells is 4. Empty Voltage and Full Voltage are set to the default values 3.5 and 4.05 V. The voltage divider was calculated and has the value 18.75386429. I have not configured amps per volt. Here the value stands at 36.36751556.
“Show Advanced Settings” is not selected.
Battery 2 is disabled.
The ESC calibration is complete.
“Show UAVCAN Settings” is selected. UAVCAN bus configuration is set to “Sensors and Actuators”.
I have not yet carried out a UAVCAN Motor Index and Direction Assignment. Do I have to do this? Does the battery have to be connected for this? When I click on “Start Assignment” I get the error message “MAV_CMD_PREFLIGHT_UAVCAN command failed”.
Nothing happens under “Motors” without installed propellers.
With these settings, connected radio to drone and PC, in the living room, QGroundcontrol reports “Not Ready” in the top left right next to the QGC logo / button. GPS and Pre-Arm Check are set to Error here.
My idea was now … Go outside and see if the GPS works outside and then the pre-arm check. Unfortunately negative. QGC reports various errors. “Battery” and “AHRS” now also read “Error”.
Is it normal that I don’t get a log within “Analizing Tools” before I was able to fly?
I hope I have described everything necessary. Maybe someone of you has solutions to my problems. In any case, thank you for your interest!