Product overview
The BrotherHobby Returner 3-8S H743 Betaflight Flight controller is a flight-control board built around an STM32H743VIH6 processor and two ICM-42688 IMUs. Its onboard electronics include an AT7456E OSD and an SPL06-001 barometer, with SD-card black-box recording support. The board measures 38.5 × 38.5mm, uses a 30.5 × 30.5mm mounting pattern with 4mm holes, and weighs 9g. Electrical integration is defined by its 3S-8S input range and BEC outputs rated at 5V/2A and 12V/2A.
Control connections comprise ESC outputs S1-S8, servo signals S9-S12 and seven serial ports, with UART1 assigned to ESC telemetry. DJI, video transmission, GPS magnetometer and adjustable LED connections support both plug-in and soldered installation; the camera interface supports soldering two cameras. Other provisions include USB Type-C, IIC, a CUR current-sensing pad, a DFU button, a debugging interface and buzzer support. Supported receiver formats are SBUS, IBUS, DSM2/X, TBS and CRSF. The specified firmware target is betaflight_4.5.2_STM32H743_BROTHERHOBBYH743.hex.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | BrotherHobby Returner 3-8S H743 Betaflight Flight controller |
| CPU | STM32H743VIH6 |
| Input power | 3S-8S |
| Dimensions and mounting | 38.5*38.5mm; 30.5x30.5mm mounting pattern; hole diameter 4mm |
| IMU | ICM-42688*2 |
| OSD | AT7456E |
| Barometer | SPL06-001 |
| Black box | SD card |
| BEC | 5V/2A and 12V/2A |
| DJI connection | Supports plug-in and soldered connections |
| IIC | Supported |
| Serial ports | 7 serial ports: UART1, UART2, UART3, UART4, UART6, UART7, UART8UART1 is ESC telemetry. |
| USB port | TYPE-C |
| Current-sensing connection | CUR pad |
| ESC outputs | S1-S8 |
| Servo signals | S9-S12 |
| LED connection | Supports plug-in and soldered connections for adjustable LEDs |
| GPS magnetometer interface | Supports plug-in and soldered connections |
| Camera interface | Supports soldered connections for two cameras |
| DFU button | Supported |
| Video transmission connection | Supports plug-in and soldered connections |
| Debugging interface | Supported |
| Target firmware | Betaflight_4.5.2_STM32H743_BROTHERHOBBYH743.hex |
| Receiver support | SBUS, IBUS, DSM2/X, TBS, CRSF |
| Buzzer | Supported |
| Weight | 9g |
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