User Manual Q&AAnswer
Mar 07, 2025 - 12:38 AM
To connect the HiTEC DLVR-L05D Airspeed Sensor to your drone, you have two options: I2C and DroneCAN.
1. I2C Connection:
- Move position 2 of the DIP switch to the OFF position, towards the J2 connector. This sets the Airspeed Sensor to I2C mode.
- Connect the J2 connector of the Airspeed Sensor to your drone's I2C connector using the provided JST-GH cable or create your own wiring harness using the pinouts provided in the manual.
- Configure the following parameters in your autopilot software to enable the Airspeed Sensor and select the appropriate DLVR sensor driver:
- Sensor: DLVR-L05D
- ARSPD_TYPE: 7
- ARSPD_BUS: 0
- ARSPD_TUBE_ORDER: 2
- ARSPD_USE: 1
2. DroneCAN Connection:
- Move position 2 of the DIP switch to the ON position, towards the J1 connector. This sets the Airspeed Sensor to CAN mode.
- If bus termination is desired, move position 1 of the DIP switch to the ON position to connect the on-board termination resistor.
- Connect the J1 connector of the Airspeed Sensor to your drone's CAN connector using the provided JST-GH cable or create your own wiring harness using the pinouts provided in the manual.
- Configure the following parameters in your autopilot software to enable the Airspeed Sensor and DroneCAN communications:
- ARSPD_TUBE_ORDER: 2
- ARSPD_USE: 1
- ARSPD_TYPE: 8
- CAN_D1_PROTOCOL: 1
- CAN_P1_BITRATE: 1000000
- CAN_P1_DRIVER: 1
Please consult your autopilot manufacturer documentation for any hardware-specific variations in parameter configuration.
For firmware updates, you can use Mission Planner's SLCan mode. Follow the instructions in the manual to update the AP_Periph firmware on the Airspeed Sensor.
Note: It is important to ensure proper tubing connection between the Airspeed Sensor and the pitot tube using 1/16" flexible tubing. The tubing should be securely attached to the barbs of the DLVR pressure sensor. The order of the tubes does not matter as long as they are configured appropriately in your autopilot software.
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