TBS Crossfire Manual

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BST to Eagletree Vector
If you use an EagleTree vector Fc, you can connect the ET bus to the BST bus to get LQ and RSSI in the osd
as well as telemetry from the FC back into the Crossfire.
To wire it up, just connect  SCL to SCL and  SDA to SDA. A common ground should already exist by the RC
connection to the FC.
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Mavlink with MAV FC’s
If you use a FC with MAVLink like ArduPilot/ PX4, you can use the MAVLink capabilities of the Crossfire.
Connect a MAVLink capable output to the Telemetry port of your FC. On PIX FC’s it’s mostly the TELEM1
port and set the Crossfire Rx output map to MAVLink Tx and Rx.
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On the FC you need to configure the telemetry port. Otherwise the Crossfire will not be able to receive
telemetry data from the fc until you connect it to Mission Planner. Your  TELEM1  can be found as  SR1
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