BetaFPV Air Brushless G4 5in1 (FC+ESC+ELRS RX+VTX)

BETAFPV Air Brushless G4 5IN1 V1 is an ultra-lightweight AIO board designed for 1S TinyWhoops and other small FPV drones. The board integrates a flight controller, ESCs, RC receiver, analog video transmitter, and OSD chip. To keep the weight low, it uses a thin 0.8mm PCB. This makes it more suitable for experienced pilots looking for the lightest possible solution. For beginners, the more durable BETAFPV Matrix board is recommended, as it is easier to build with. The board includes an external USB port connected via SH1.0 connector.

The flight controller is equipped with an STM32G473 processor and an ICM42688P gyro. It also features 16MB blackbox memory. The integrated 4-in-1 ESCs support up to 5A and run Bluejay firmware. Motors must be soldered directly to the board. Use extra caution when soldering, as excessive heat may cause components on the opposite side to detach.

The built-in 5.8GHz VTX supports output power of 25/100/200/400 mW. With SmartAudio support, VTX settings can be easily adjusted through Betaflight. For indoor flying, 25–100 mW is recommended to reduce heat and battery drain. The antenna connects via u.FL connector. The RC link is handled by an integrated 2.4GHz ELRS receiver connected via UART. The UART pads remain available, allowing the onboard receiver to be disabled and replaced with an external one if required. The internal ELRS receiver uses a direct-soldered wire antenna.

Board layout