Instruction for Use

HOW TO CONNECT THE EXTERNAL RX TO TOOTHPICK 20A AIO FC V2

Here is the connection diagram with Frsky XM+ receiver.

Here is the connection diagram with FS-RX2A receiver.

Here is the connection diagram with Futaba-X-BOSS AC900 receiver.

Here is the connection diagram with TBS Crossfire receiver.

Status LED

There are 3 LEDs on the bottom of the board to indicate the status, including Receiver LED ( Green), FC Status LED ( Blue ) and FC Power LED ( Red ). 

Built-in CURRENT METER

You could get a more accurate current value without using the virtual current meter. In order to use this current sensor hardware, some configurations in Betaflight GUI are needed. In the "Power & Battery" tab:

Note: You may need to slightly adjust offset at Amperage Meter after connecting electronic components, such as VTX, camera, and motor.

Then when flying, you could find the real current value from the OSD information. Of course, the current sensor is configured well in the factory and you do not need to change it as usual.

Know more about current sensor and calibration.