The new AIO board has the Plug & Play Port for the external Rx, and there will be a 4-Pin connector for Rx in the package, pilots can enjoy less soldering work, easy for installation. In addition, please notice that when you connect the different external Rx, the pads near the pin need to be soldered as the following diagram.
Diagram for Toothpick 20A AIO FC V4

Status LED
There are 2 LEDs on the bottom of the board to indicate the status, including the Power LED ( Red), FC LED(Blue).
LED |
Status |
Description |
Power LED ( Red) |
Solid |
Power on |
FC LED ( Blue ) |
Solid |
Motor Armed |
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