SIYI N7 H7 Autopilot Flight Controller
Technical Highlights
STM32H743 Autopilot Platform
The SIYI N7 uses a 480 MHz STM32H743IIK6 main processor with 2 MB flash and 1 MB RAM, supported by an STM32F103 co-processor for flight-control input and output management.
Dual Isolated IMUs
BMI088 and ICM20689 inertial sensors provide a dual-IMU architecture. Internal vibration isolation and an IMU heater help maintain stable sensor performance across demanding UAV operating environments.
13 Flight-Control Outputs
Eight Main PWM outputs are managed through the dedicated I/O controller, while five AUX outputs connect directly to the H7 processor and support PWM protocols as well as DShot.
ArduPilot and PX4 Compatibility
The autopilot supports ArduPilot and PX4 firmware for planes, multirotors, helicopters, VTOL aircraft, unmanned ground vehicles and unmanned surface vehicles.
Industrial Integration Interfaces
Four UART ports, three I2C interfaces, one CAN interface, RC input, USB Type-C and a TF card slot provide flexible connectivity for telemetry, navigation and peripheral integration.
Autopilot Specifications
| Main Processor | STM32H743IIK6, 32-bit Arm Cortex-M7, 480 MHz |
|---|---|
| Flash and RAM | 2 MB flash and 1 MB RAM |
| Co-processor | STM32F103, 32-bit Arm Cortex-M3, 72 MHz |
| Accelerometer and Gyroscope | BMI088 and ICM20689 dual IMUs |
| IMU Features | Internal vibration isolation and controllable IMU heater |
| Electronic Compass | IST8310 |
| Barometer | MS5611 |
| Firmware Compatibility | ArduPilot and PX4 |
| ArduPilot Firmware Target | SIYI_N7 |
| Operating Temperature | -20°C to 65°C |
| Controller Dimensions | 47 × 68 × 19 mm |
| Controller Weight | 57 g |
Interfaces and Outputs
| UART Serial Ports | 4 |
|---|---|
| I2C Interfaces | 3 |
| CAN Interfaces | 1 |
| Main PWM Outputs | 8; PWM output protocols supported, DShot not supported on Main outputs |
| AUX Outputs | 5 programmable outputs with PWM and DShot support |
| RC Input | 1 RCIN input |
| GPS and Safety Port | 1 |
| Power Module Input | 1 |
| USB | USB Type-C |
| Data Storage | TF card slot for flight logs |
N7 Power Module Specifications
| Battery Input | 2–14S |
|---|---|
| Regulated Output | 5.2 V |
| Continuous Output Current | 2 A |
| Maximum Output Current | 3 A |
| Continuous Current Rating | 60 A |
| Peak Current Rating | 100 A for less than 60 seconds |
| Maximum Measurable Current | 120 A |
| Power Module Dimensions | 23 × 29 mm |
| Power Module Weight | 32 g including cable and connector |
Compatible Vehicle Platforms
Fixed-wing aircraft and mapping platforms
Multirotor and industrial UAV systems
Helicopter and VTOL aircraft
Unmanned ground vehicles
Unmanned surface vehicles
Available Purchase Configurations
| Basic Combo | SIYI N7 autopilot and N7 power module |
|---|---|
| GPS Combo | SIYI N7 autopilot, N7 power module and compatible GPS module |
| Configuration Confirmation | Confirm the GPS model, cables, connectors and complete package contents before ordering. |
FAQ
Does the SIYI N7 support both ArduPilot and PX4?
Yes. SIYI specifies compatibility with both ArduPilot and PX4 firmware. The ArduPilot firmware target is SIYI_N7.
Which aircraft and vehicle types can use the N7 autopilot?
The N7 is designed for planes, multirotors, helicopters, VTOL aircraft, unmanned ground vehicles and unmanned surface vehicles.
How many motor or servo outputs does the controller provide?
It provides 13 outputs in total: eight Main PWM outputs and five programmable AUX outputs.
Do all 13 outputs support DShot?
No. The five AUX outputs support DShot because they connect directly to the STM32H743 processor. The eight Main outputs support PWM output protocols but not DShot.
Can a 2–14S battery be connected directly to the flight controller?
No. The 2–14S rating belongs to the external N7 power module. The power module regulates battery power before supplying the flight controller.
Does the SIYI N7 include an onboard compass?
Yes. The controller includes an IST8310 electronic compass. An external GPS or compass may also be selected according to the vehicle installation and magnetic environment.
Is a GPS module included?
GPS inclusion depends on the selected configuration. The Basic Combo contains the autopilot and power module, while the GPS Combo adds a compatible GPS module. Confirm the exact GPS model before ordering.
Does the controller support onboard flight logging?
Yes. The N7 has a TF card slot for flight logs and related autopilot data storage.
B2B Procurement FAQ
Which configuration should be specified in a purchase inquiry?
Please specify either the Basic Combo or GPS Combo and state the required quantity, destination country and intended vehicle platform.
Should the N7 and N7+ model markings be confirmed?
Yes. Some supplied product images show N7+ on the housing, while current manufacturer documentation identifies the platform as N7. Confirm the housing marking, hardware revision and firmware compatibility for the required production batch.
What technical details should be confirmed before integration?
Confirm the firmware platform, GPS model, connector pinout, power module version, receiver protocol, output requirements and complete package contents before system integration.
Can the controller be ordered for ArduPilot or PX4 projects?
Yes. Both firmware ecosystems are supported. Buyers should identify the intended firmware and vehicle type so that the correct firmware package and integration requirements can be checked.
Are cables and accessories identical in every package?
Package contents can vary by selected configuration and supply batch. Request a confirmed packing list covering the controller, power module, GPS module, cables, connectors and related accessories.
Can MOQ, availability and lead time be confirmed?
MOQ, stock status and lead time depend on the requested configuration and order quantity. Submit the exact model, package option and quantity for a current quotation.
















