BrotherHobby Returner 3-8S H743 Betaflight Flight Controller, Dual ICM42688, SD Blackbox, Type-C

Overview

The BrotherHobby Returner 3-8S H743 Betaflight flight controller is a 38.5*38.5mm FC designed for multirotor builds needing multiple UARTs, SD card blackbox logging, and dual gyros. It supports Betaflight and also states support for ArduPilot in manufacturer materials.

Key Features

• MCU: STM32H743VIH6
• Dual IMU: ICM-42688*2 (manufacturer materials also state 8KHz sampling rate)
• Onboard OSD: AT7456E
• Built-in barometer: SPL06-001
• SD card blackbox logging
• Dual independent BEC: 5V/2A and 12V/2A
• 7 serial ports: UART1, UART2, UART3, UART4, UART6, UART7, UART8 (UART1 is ESC Telemetry)
• USB Type-C
• 8 motor outputs (S1-S8) and servo signals (S9-S12)
• CAN interface (SH1.0 4-pin: GND, CAN_H, CAN_L, 5V)
• LED support (direct insertion and soldering of adjustable LEDs)
• Interfaces supported: IIC, buzzer, DFU button, debugging interface
• DJI VTX / image transmission / GPS magnetometer interfaces support direct insertion and welding
• CAM camera interface supports dual camera welding
• 6-layer board design with 10OZ copper thickness (manufacturer materials)

Specifications

What’s Included

• BrotherHobby H743 flight controller
• M3*8mm silicone case
• SH 1.0mm 8-pin ribbon cable (60mm) ESC cable
• SH 1.0mm 6pin ribbon cable (80mm) DJI connection cable
• SH 1.0mm 6-pin ribbon cable (80mm) GPS connection cable
• SH 1.0mm 4-pin ribbon cable (65mm) receiver connection cable
• SH 1.0mm 3-pin ribbon cable (65mm) LED connection cable
• SH 1.0mm 4-pin ribbon cable (65mm) image transmission connection line

Wiring Notes

• SBUS receiver note: The SBUS signal line must be connected to the SBUS pad on the front of the flight controller (which uses serial port 2 internally). If using a DJI system at the same time via the dedicated 6-pin socket on the back of the flight controller, disconnect the SBUS signal line of the DJI ribbon cable from the flight controller; otherwise the SBUS receiver may not be recognized normally.
• ELRS receiver note: Suggested TX and RX connection is to the T2 and R2 pads. When using a DJI system at the same time, if recognition issues occur, disconnect the SBUS signal line of the DJI ribbon cable from the flight controller.

Support

For pre-sales compatibility questions or setup help, contact support@rcdrone.top or visit https://rcdrone.top/.

Details

The Returner 3-8S H743 flight controller combines a compact stack layout with USB-C, an SD blackbox slot, and a 4-pin CAN interface (GND, CAN_H, CAN_L, 5V).

The H743 flight controller uses a 6-layer PCB with 1oz copper to support higher current carrying capacity on the board.

The Returner flight controller uses an F722 main control chip and a connector-rich layout for tidy, straightforward wiring.

The Returner 3–8S H743 flight controller combines a USB-C port, clearly labeled solder pads, and dual 12V/5V BEC outputs for clean power and wiring.

The BrotherHobby Returner H743 3–8S flight controller features a Type‑C USB port and clearly labeled pads for straightforward wiring, including support for up to 8 motor outputs.

The BrotherHobby Returner H743 flight controller includes a built-in barometer for real-time altitude sensing.

The Returner H743 flight controller uses dual ICM42688 gyros and an onboard SD card slot for blackbox logging, with a USB‑C connector for setup.

The BrotherHobby H743 flight controller kit includes a silicone case and multiple SH 1.0mm ribbon cables for ESC, DJI, GPS, receiver, LED, and image transmission connections.

BrotherHobby Returner H743 flight controller lists 3–8S input power, dual ICM42688 IMUs, SD card blackbox, and a USB Type‑C port.

BrotherHobby Returner H743 flight controller wiring layout maps the pads for connecting an ESC, receiver, VTX, GPS, DJI unit, camera, and LEDs.

Special precautions for SBUS and ELRS receivers outline how to connect signal lines and avoid conflicts when using a DJI sky end.

The Returner H743 flight controller connects to the ESC with an 8‑pin cable, with pads labeled for M1–M4 throttle signals plus TEL, CUR, GND, and VCC.