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SIYI N7 is an autopilot flight controller designed for UAVs and other unmanned vehicle applications. It combines an STM32H743IIK6 main processor, dual IMU redundancy, internal shock absorption and flexible external interfaces in a compact controller platform.
The N7 supports PX4 and ArduPilot firmware ecosystems and can be integrated into planes, multirotors, helicopters, VTOL aircraft, unmanned ground vehicles and unmanned surface vehicles. Its interface configuration includes UART, I2C, CAN, USB Type-C, TF card, GPS, power module and RC input connections.
For applications requiring higher positioning accuracy, the N7 system can be paired with compatible RTK or PPK modules. Optional links, controllers, gimbal cameras and optical pods can also be integrated according to the selected system configuration.
Open-Source Autopilot Ecosystem
For PX4, ArduPilot, UAVs and unmanned vehicles
N7 Autopilot Flight Controller
Redundant Sensing and Shock Absorption
The N7 flight controller uses a dual IMU redundancy design and an internal shock absorption structure to support stable sensor operation in demanding unmanned vehicle applications.
Its built-in heating resistors help maintain a consistent IMU operating temperature in low-temperature environments. The combined sensor redundancy and thermal management design supports reliable attitude data acquisition and contributes to stable flight-control performance.
High-Performance Processing Platform
The N7 is equipped with an STM32H743IIK6 processor with an Arm Cortex-M7 core, a maximum operating frequency of 480 MHz, 2 MB flash memory and 1 MB RAM.
The processor platform provides high-speed data processing capacity for flight-control applications and creates additional room for firmware functions, system integration and future application development.
Core Technical Specifications
· Main Processor: STM32H743IIK6, Arm Cortex-M7, 480 MHz, 2 MB flash memory, 1 MB RAM
· Coprocessor: STM32F103, Arm Cortex-M3, 72 MHz, 20 KB SRAM
· Accelerometer / Gyro: BMI088 / ICM20689
· Barometer: MS5611
· Electronic Compass: IST8310
· UART Serial Ports: 4
· I2C Interfaces: 3
· CAN Interface: 1
· USB Interface: 1, Type-C
· TF Card Slot: 1
· Power Module Input: 1
· GPS and Safety Interface: 1
· PWM Output: Standard 8 PWM I/O plus 5 programmable I/O
· RC Input: 1 SBUS input
· Compatible Firmware: PX4 and ArduPilot
· Compatible Platforms: Planes, multirotors, helicopters, VTOL, UGV and USV
· Power Input: 4.5–5.5 V
· USB Voltage Input: 5 V ±0.25 V
· Servo Voltage Input: 0–10 V
· Working Temperature: −20 to 65 °C
· Product Dimensions: 47 × 68 × 19 mm
· Product Weight: 57 g
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Technical Specifications at a Glance
The SIYI N7 autopilot flight controller is built around an STM32H743IIK6 Arm Cortex-M7 processor running at up to 480 MHz, with 2 MB flash memory and 1 MB RAM. It also includes an STM32F103 coprocessor with a 72 MHz Arm Cortex-M3 core and 20 KB SRAM.
The sensor system includes BMI088 or ICM20689 accelerometer and gyroscope components, an MS5611 barometer and an IST8310 electronic compass. The controller provides 4 UART serial ports, 3 I2C interfaces, 1 CAN interface, 1 USB Type-C interface, 1 TF card slot, 1 power module input, 1 GPS and safety interface, and 1 SBUS RC input.
The N7 supports PX4 and ArduPilot firmware for planes, multirotors, helicopters, VTOL aircraft, unmanned ground vehicles and unmanned surface vehicles. It operates with a 4.5–5.5 V power input, a 5 V ±0.25 V USB voltage input and a 0–10 V servo voltage input. The working temperature range is −20 to 65 °C. Product dimensions are 47 × 68 × 19 mm and product weight is 57 g.
Package and Shipping Information
· Package configuration: Please confirm the selected N7 configuration before ordering.
· N7 Autopilot Basic Combo: N7 Autopilot and Power Module.
· N7 Autopilot GPS Combo: N7 Autopilot, Power Module and M9N GPS Module.
· Optional accessories may include RTK modules, airspeed meters, links, controllers, gimbal cameras and optical pods.
· Shipping method, lead time and final package contents should be confirmed according to the order configuration.
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Important Notice
· Read the official manual before installation and operation.
· Verify wiring, power input, sensor calibration and failsafe settings before flight.
· Confirm firmware, peripheral and system compatibility before integration.
· RTK, PPK modules and other accessories may be optional and are not necessarily included in the basic controller package.
· Test the complete unmanned vehicle system in a controlled and legally permitted environment.
