The CUAV 7-Nano flight controller is a high-tech, ultra-compact autopilot for UAVs, designed for use in space-constrained systems without sacrificing functionality or reliability. It features a powerful STM32H753 (Cortex-M7) processor with a 480 MHz clock speed and double-precision floating point, enabling complex real-time data processing algorithms. The system has dual inertial measurement unit (IMU redundancy) with industrial-grade sensors, enhancing fault tolerance and navigation accuracy.
The design features a stacked block format with dimensions of only 30.75 × 31.8 × 25.75 mm and a weight of 33.8 g. With side-mounted ports, the device is easily integrated even into drones with minimal internal space. The built-in Ethernet port (100 Mbps) ensures high-speed data exchange with onboard computers, optical gimbals, and other systems.
The controller is compatible with ArduPilot, PX4, and FMT firmwares, supports 3.3 V / 5 V PWM output configuration, and offers a wide range of interfaces and connectivity options. An optional PDB module is available for high-voltage power, allowing operation with batteries up to 16S (70 V).
Technical Specifications Table
| Characteristic | Value / Description |
|---|---|
| Processor | STM32H753 (ARM Cortex-M7), 480 MHz, 2 MB flash memory |
| IMU (Inertial Sensors) | Dual: IIM-42652 + BMI088 |
| Magnetometer (Compass) | IST8310 |
| Barometers | Dual: ICP-20100 and BMP581 |
| I/O Interfaces | 14 PWM outputs (some switchable 3.3 V / 5 V), 5 UART, USB-C, 1 Ethernet (100 Mbps), 3 I²C, 2 CAN |
| microSD Slot | Yes, for flight data logging |
| Power Supply | Input: 4.5 … 5.5 V; Servo Rail: 0 … 10 V; USB: 4.75 … 5.25 V |
| Dimensions / Weight | 30.75 × 31.8 × 25.75 mm / ~33.8 g |
| Temperature Range | –20 °C … +85 °C |
| Humidity | 5 % … 95 % (non-condensing) |
| PDB Module (Optional) | Input: 12 … 70 V (3S … 16S), current up to 60 A, BEC 5.3 V / 4 A, 6 distribution channels |
| Firmware Compatibility | ArduPilot (versions 4.5.6 and above), PX4, FMT |
Advantages
High performance thanks to the STM32H7 processor with 480 MHz frequency.
Maximum reliability due to dual IMU and barometers.
Compactness — only 33.8 g, minimal dimensions for integration into small drones.
Wide range of interfaces: Ethernet, CAN, UART, I²C, PWM.
Flexible connectivity — PWM switching between 3.3 V and 5 V.
Optional PDB with support for up to 16S batteries and 60 A current.
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