Flight Controller and UAS Development Platform
STM32H743 • Dual ICM-42688-P • 10 Outputs • 7 UARTs • CAN
The Openflyworld H743 V1 combines flight control, sensor connectivity and peripheral expansion in a compact platform for FPV drones, multirotor UAS and custom system development.
Product Overview
Built around the STM32H743 microcontroller, the H743 V1 integrates two ICM-42688-P IMUs, onboard flight-log storage and a broad range of communication interfaces. Its hardware supports flight-control applications and integration with external sensors, telemetry systems and companion computers.
Designed for Betaflight, ArduPilot, PX4 and INAV, the controller offers flexibility across different flight-control environments. Available interfaces and functions depend on the selected firmware, board target and configuration.
Key Features
- Two ICM-42688-P IMUs, each with a 3-axis gyroscope and 3-axis accelerometer.
- 10 motor or servo outputs, with bidirectional DShot support on S1–S8.
- Seven UARTs plus CAN, I2C, SPI expansion and four programmable I/O ports.
- Analog video connectivity and a dedicated interface for DJI O3/O4 systems.
- microSD logging, USB Type-C and ST-LINK debugging access.
- 3S–6S LiPo input with separate 5 V / 3 A and 10 V / 3 A BEC outputs.
Connectivity and Expansion
Motor and Servo Control
Ten outputs (S1–S10) support motor and servo applications. S1–S8 support bidirectional DShot with compatible ESCs and firmware; S9–S10 provide additional PWM outputs. Two ESC connector groups (M1–M4 and M5–M8) provide motor signals, power connections and current-sensing connections for multi-motor installations.
Navigation and Communication
Seven UART interfaces provide connectivity for compatible receivers, GPS modules, telemetry radios and companion computers. CAN, I2C and SPI interfaces provide expansion options for navigation sensors, range sensors and other supported devices. Peripheral support depends on electrical compatibility and firmware drivers.
Video and Peripheral Power
Analog camera input and VTX output support analog FPV systems. A dedicated DJI interface provides connectivity for O3/O4 video systems. Separate 5 V / 3 A and 10 V / 3 A BEC outputs power compatible peripherals; connector pin assignments and power requirements must match the connected device.
Programmable Inputs and Outputs
Four programmable I/O ports (IO1–IO4) support custom input and output functions. Dedicated pads support a buzzer and WS2812 LEDs. Relays, pumps, valves and other loads can be controlled through suitable external driver circuits.
Dual ICM 42688 P IMUs
The two ICM-42688-P 6-axis inertial sensors provide separate sources of angular-rate and acceleration data for attitude estimation and sensor monitoring. Use of both sensors, fault detection and sensor switching depend on the flight-control firmware and its configuration.
Companion Computer Integration
The H743 V1 can serve as the flight-control layer in a system that includes a Raspberry Pi or NVIDIA Jetson companion computer. With compatible firmware and communication software, a companion computer can process camera or sensor data and exchange mission commands and telemetry with the flight controller.
This provides a development platform for computer vision, AI-assisted navigation, autonomous mission research and custom payload integration. These capabilities require additional hardware, application software and system validation.
Applications
FPV and multirotor platforms • UAS research and prototyping • Sensor and payload integration • Companion-computer development • Custom autonomous-system experiments
Technical Specifications
| Specification | Openflyworld H743 V1 |
| Main MCU | STM32H743 |
| Inertial sensors | 2 × ICM-42688-P 6-axis IMUs |
| Firmware platforms | Betaflight / ArduPilot / PX4 / INAV |
| Motor and servo outputs | 10 channels, S1–S10 |
| Bidirectional DShot | S1–S8, with compatible firmware and ESCs |
| ESC connectors | 2 groups, M1–M4 and M5–M8 |
| UART | 7 interfaces |
| CAN | 1 interface |
| I2C | 1 interface |
| SPI expansion | 1 reserved interface |
| Programmable I/O | 4 ports, IO1–IO4 |
| Storage | microSD card slot |
| Analog video | 1 camera input and 1 VTX output |
| Digital video | Dedicated DJI O3/O4 interface |
| Peripheral pads | Buzzer and WS2812 LEDs |
| Regulated power outputs | 5 V / 3 A and 10 V / 3 A |
| Battery input | 3S–6S LiPo |
| USB | USB Type-C |
| Debug access | ST-LINK pads |
| Mounting hole spacing | 30.5 mm |
Interface availability, logging and peripheral functions depend on firmware support and configuration. Confirm connector pinouts and electrical requirements before installation.
Product Enquiries
Contact Openflyworld to discuss firmware configuration, peripheral compatibility and integration requirements for your platform.