Flight Control Unit
Shark SkyApex FCU
Coming Soon
Flight control for sensor-intensive UAV and avionics systems
SkyApex FCU combines dual IMUs and barometers, an onboard magnetometer, isolated sensor power and an STM32H743 processor on one board.
Precision-oriented flight-control architecture
SkyApex powers critical sensor groups through separate low-noise regulators. Dual IMUs and barometers create two independent inertial and pressure-sensing paths.
An onboard magnetometer, 12 PWM outputs and seven UART interfaces connect additional sensors and aircraft subsystems to the same flight controller.
- Cortex-M7
- H743
- Sensor 3.3 V
- 4× LDO
- BMI270
- 2× IMU
- PWM outputs
- 12×
Separate power rails for critical sensors
SkyApex powers its sensor groups through four independent low-noise regulators instead of one shared 3.3 V rail.
This separation reduces the electrical noise that can reach critical sensors through the general power system.
| Parameter | Value |
|---|---|
| Sensor regulation | 4× independent low-noise 3.3 V LDO |
Two independent barometers
A Bosch BMP581 and an Infineon DPS368 create two independent pressure-sensing paths.
Their data can support altitude calculations and system-level consistency checks.
| Parameter | Value |
|---|---|
| Barometer | Bosch BMP581 |
| Barometer | Infineon DPS368 |
Dual IMU architecture
Two Bosch BMI270 sensors provide dual inertial sensing paths for accelerometer and gyroscope measurements.
| Parameter | Value |
|---|---|
| IMU | 2× Bosch BMI270 |
Onboard magnetometer
The Bosch BMM350 supplies magnetic heading data from the board, removing the need for a separate magnetometer in suitable systems.
| Parameter | Value |
|---|---|
| Magnetometer | Bosch BMM350 |
STM32H743 processing
SkyApex uses a 32-bit Arm Cortex-M7 STM32H743VIT6 processor for flight-control and connected avionics tasks.
| Parameter | Value |
|---|---|
| Processor | STM32H743VIT6 32-bit Arm Cortex-M7 |
Flexible high-voltage input
SkyApex accepts a 5 V–60 V input. Confirm the aircraft's voltage and electrical compatibility requirements before installation.
| Parameter | Value |
|---|---|
| Operating voltage | 5 V–60 V |
| USB power input | 5 V |
Separate power rails for onboard systems
SkyApex has one regulated 12 V output and two separate 5 V rails. One 5 V rail serves general systems; the other is dedicated to servos and actuators.
| Parameter | Value |
|---|---|
| Regulated output | 1× 12 V |
| System 5 V rail | 1× 5 V general-purpose |
| Servo 5 V rail | 1× 5 V servo / actuator |
Avionics and subsystem connections
SkyApex includes seven UART, three I2C, 12 PWM, one SBUS and one USB Type-C interface.
12 PWM outputs
The PWM outputs connect actuators and other compatible subsystems to the flight controller.
| Parameter | Value |
|---|---|
| PWM Output | 12× |
| UART | 7× |
| I2C | 3× |
| SBUS | 1×, DJI Air Unit Compatible |
| USB | USB Type-C |
SBUS and system integration
The SBUS interface is compatible with DJI Air Unit. Confirm electrical and system compatibility before installation.
Onboard analog video OSD
The AT7456E OSD can overlay flight information on supported analog video systems. DJI Air Unit uses a separate integration path.
| Parameter | Value |
|---|---|
| Video OSD | AT7456E |
Onboard storage
The MicroSD card slot can record and store flight data when supported by the selected flight-control software.
Technical specifications
Published technical specifications for Shark SkyApex FCU.
Processing & Sensors
| Parameter | Value |
|---|---|
| Processor | STM32H743VIT6 32-bit Arm Cortex-M7 |
| IMU | 2× Bosch BMI270 |
| Magnetometer | Bosch BMM350 |
| Barometer | Bosch BMP581 + Infineon DPS368 |
| Video OSD | AT7456E |
Power
| Parameter | Value |
|---|---|
| Operating Voltage | 5 V–60 V |
| USB Power Input | 5 V |
| Regulated Output | 1× 12 V |
| Regulated Output | 2× 5 V |
| Sensor Regulation | 4× independent low-noise 3.3 V LDO |
Environmental & Construction
| Parameter | Value |
|---|---|
| Operating Temperature | −20 °C to +85 °C |
| Operating Humidity | 5%–95% RH, non-condensing |
| PCB Material | FR-4 S1000-2M, Tg 170 °C |
Interfaces
| Parameter | Value |
|---|---|
| PWM Output | 12× |
| UART | 7× |
| I2C | 3× |
| SBUS | 1×, DJI Air Unit Compatible |
| Storage | MicroSD Card |
| USB | USB Type-C |
Where SkyApex sits in Skyline
Within the Skyline family, SkyApex is intended for platforms that need dual sensor paths, isolated sensor power and more avionics connections.
Compact flight controller with direct battery input, onboard sensors and a Raspberry Pi pinout.
Flight controller with dual IMUs, CANBUS, wireless telemetry, a 5–60 V operating range and two regulated power outputs.
Shark SkyApex FCUThis product
Precision flight controller with isolated sensor power, dual barometers, dual IMUs, integrated magnetometer and STM32H743 processing.
Frequently asked questions
Short answers about sensing architecture, interfaces and power rails.
Is SkyApex right for your system?
Talk to our technical team about integration, compatibility and procurement.