Flight controller for BetaFPV Air series (4-in-1)

BetaFPV Air Series Flight Controller (4-in-1)

Note

• VTX transmitter power: Higher VTX transmitter power consumes more power and generates more heat, reducing flight time. For better indoor flight time, use a power of 25~100mW.
• The calibrated power measured after temperature stabilization (more than 60 seconds after launching the flight controller) is: when set to 25mW, the output power is within 14dBm±0.8dBm (21mW to 30mW), which meets the standards. Test data of the 5IN1 Air FC version with VTX set to 25mW is shown below.

• The 4IN1 Air FC V1.1 version has already resolved the VTX output power anomaly.
• Engine Wiring: Only motor wiring soldering is supported in the flight controller. Be careful that the temperature of the soldering iron should not exceed 370℃, and the soldering time should not exceed 1-2 seconds.

Features

• The first 1S flight controller using the G473 processor, offering a 55% increase in computing speed and lightning-fast response times.
• Higher integration and lighter design, weighing only 2.9g (4IN1 version) or 3.6g (5IN1 version).
• Default 25-400mW integrated VTX transmitter, saving space and weight.
• Industry-leading ICM42688P gyroscope, providing precise calibration of the drone's movement and attitude.
• Black box memory of up to 16MB for detailed flight analysis.

Flight controller specifications

• Weight: 2.9g (4IN1 version) / 3.6g (5IN1 version)
• Mounting hole size: 26mm x 26mm
• Processor: STM32G473CEU6 (168MHz)
• Gyroscope: ICM42688P (SPI connection)
• Black box memory: 16MB

Diagram

Comparison of G473 and F411

Say goodbye to limitations and experience the cutting-edge technology of the G473 flight controller for an unparalleled flight experience. The Air Brushless flight controller offers processor clocking of up to 168 MHz and 4 richer serial ports for lightning-fast response times and advanced processing power. This makes it perfect for demanding flights, taking your experience to a new level and surpassing all FC options available on the market for the 1S.

4IN1 and 5IN1

Choose the Air Brushless flight controller with higher integration, designed specifically for ultra-light 1S whoop installation. By default, the integrated VTX 25-400 mW transmitter provides optimal functionality. The 5IN1 version (FC+ESC+OSD+VTX+RX) additionally includes a Serial ELRS 2.4G RX receiver, simplifying installation and reducing weight. The 4IN1 version does not include the RX port, offering more flexibility in choosing an external receiver.

Serial ELRS 2.4G RX receiver

The Serial ELRS 2.4G RX receiver uses the CRSF protocol to communicate with the flight controller. It supports upgrading to ELRS V3.0 without flashing the Betaflight flight controller's firmware.

• Connect and disconnect the flight controller three times.
• Verify that the RX LED quickly flashes twice, indicating pairing mode.
• Make sure the RF TX transmitter goes into pairing mode.
• If the LED is solid, it means the device is paired.

Connecting external RX/VTX

The UART2 port is connected to the VTX by default. The controller has three full serial ports to support CRSF/SBUS, GPS, HD VTX and other devices.

Notes

• Higher power VTX reduces flight time and generates more heat.
• Motors should be soldered, not connected via terminals.
• The VTX antenna should be connected before powering up.

Recommended parts

• Drones: Air65, Air75
• Frames: Air65, Air75, Meteor65, Meteor65 Pro, Meteor75 Pro
• Motors: 0702/0702SE, 0802/0802SE, 1102
• Receivers: ELRS Lite, ELRS Nano

Package contents

• 1 × Air Brushless Flight Controller
• 1 × Type-C adapter to SH1.0
• 1 × SH1.0 4-pin adapter cable
• 1 × VTX 5.8G antenna
• 1 × BT2.0 U Whoop Cable Pigtail | 40mm
• 4 × Self-tapping screws M1.4×4
• 4 × Shock absorbing rubber bands