BetaFPV Air 5IN1 Brushless Flight Controller

The BetaFPV Air Brushless Flight Controller (5IN1) combines a flight controller, 1S 5A ESC, OSD, serial ELRS 2.4GHz receiver and 5.8GHz VTX on an ultra-thin 0.8mm board that weighs 3.6g. It was the first 1S FC built on the STM32G473. It is aimed at experienced pilots building the lightest possible 65-75mm whoops.

Key features

• STM32G473 at 168MHz with ICM42688P gyro and up to 8K sample rate

• Onboard 5.8GHz VTX: 25/100/200/400mW plus PIT mode, 48 channels including Raceband, SmartAudio 2.0

• 16MB blackbox with voltage and current sensing

• Three full serial ports for GPS, an HD VTX or an external receiver

• Bluejay 5A ESC with DShot300/600

Specifications

• Mounting: 26 x 26mm

• CPU: STM32G473CEU6, 168MHz

• Gyro: ICM42688P (SPI)

• Blackbox: 16MB

• BEC: 5V 3A (derates as temperature rises)

• USB: SH1.0 4-pin

• ESC: 1S, 5A continuous, Bluejay A_X_5_96KHz_V0.19

• Receiver: serial ELRS 2.4GHz

• VTX: 5.8GHz, 48 channels, 25-400mW

• Firmware: Betaflight 4.5.0 (BETAFPVG473)

• Weight: 3.6g

The board supports analog video only, and motors solder straight to it because there are no plugs. The 5A ESC suits 0702 and 0802 motors on 65-75mm whoops; 1102 motors need a higher-current board. BetaFPV recommends 25-100mW VTX power indoors, which means less heat and longer flights.