Wiring layout
Since the CRSF protocol is serial, it has to be connected to a free serial/UART port on the flight controller.
On the COLIBRI RACE you can choose UART 1 or 3. If you use the POWERCUBE with FPVision, you can use
also use UART2. The pin-out and wiring layout shown in the following table and on the included diagram.
CROSSFIRE MICRO
V1 RX
CROSSFIRE MICRO
V2 RX/ Nano RX
CROSSFIRE
DIVERSITY RX
Clean-/BetaFlight Serial
port (COLIBRI or other)
Ch./Pin 1 TX
Ch./Pin 1 TX, 5V,
GND
Ch./Pin 8 TX, 5V,
GND
⇒
UART1 or 3 RX, 5V, GND
Not available
Ch./Pin 2 RX only
Ch./Pin 7 RX only
⇐
UART1 or 3 TX
In addition to the CRSF serial connection, you might want to connect BST (BlackSheep Telemetry) between
the CROSSFIRE RX and COLIBRI to provide more telemetry and make changes remotely on the CORE PRO
(if connected) or FPVision (if part of the POWERCUBE).
CROSSFIRE RX
BST
⇒
CORE PRO
BST
⇒
POWERCUBE standard
INT. COLIBRI FC
CROSSFIRE RX
BST
⇒
BST
⇒
POWERCUBE FPVision
INT. COLIBRI FC
47