Parameter Setup
Ardupilot
- Connect the Power Module CAN connector to the Flight Controller’s CAN1 Port
- Change the following parameters:
CAN_P1_DRIVER=1
CAN_SLCAN_CPORT=1
BATT_MONITOR=8
Unplug the Power and Restart the Flight Controller
Optional: Right-click on MissionPlanner -> User Items -> Check battery temp to display the temperature on the interface.
PX4
- Connect the Power Module CAN connector to Flight Controller’s CAN1 Port
- Change the following parameters:
UAVCAN_SUB_BAT = 2 (filter)
BAT1_SOURCE = External
Unplug Power and Restart Flight Controller
You should now see the voltage and current consumed
Calibration
According to the factory default settings, the PM current and voltage detection accuracy is about 5%, which can be improved by fine-tuning the PM parameters.
- Connect the PM to the CAN1 port of the Ardupilot firmware flight controller
- Go to MissionPlanner->SETUP->Optional Hardware->DroneCAN/UAVCAN page, click MAVlink-CAN1, Parameters
- Adjust the parameters in the following interface
BAT_AMP_PERVLT parameter
BAT_VOLT_MULT parameter
If the Voltage/current displayed on MissionPlanner is greater than the value displayed on the regulated power supply, adjust the value down. Otherwise, adjust it up
- Click Write Params
- Click Commit Params
- Return to the MissionPlanner DATA page to see if the voltage and current are accurate. If not, repeat above
CAN MCU Firmware Upgrade
In Mission Planner – DroneCAN/UAVCAN page, select the ID f405_HolybroPMU, click menu, select Update, and update the firmware online.
Please update Mission Planner to the version indicated below(1.3.74) or higher.
After clicking “Update,” it will ask whether to search for an update from the Internet. Click “Yes”. (Automatically searches for upgrades to the latest stable version firmware).
If you have downloaded the firmware on your local computer, click “No”. (Update local firmware).
If you have downloaded the firmware on your local computer, click “No” and select the firmware file from your local drive.
Check the firmware version after the has beenupgrade. After the upgrade, check whether the version is successfully upgraded.
If “No update available ” appears when searching updates. Please turn off your firewall in the system settings and try again.
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