3DR Control N1 Flight Controller
by 3DR

The 3DR Control N1 (CN1) Flight Controller is an ultra-compact, feather-light, commercial-grade autopilot module engineered for space- and weight-constrained unmanned aerial vehicles (UAVs), sub-250g micro-drones, custom robotics, and ROVs. Weighing just 2.38 grams and measuring 17.6 mm x 28.15 mm, this US-designed and manufactured flight controller delivers high-end processing power and dual-sensor redundancy in a stamp-sized form factor.

Powered by an STMicro STM32H743 32-bit Arm Cortex-M7 processor operating at 480 MHz, the Control N1 provides massive computational headroom for real-time sensor fusion, complex autonomous navigation, and flight stabilization under both ArduPilot and PX4 open-source flight stacks. Built on a durable single-sided PCB architecture for improved reliability and manufacturing efficiency, the module utilizes high-density board-to-board connectors (Amphenol BergStak series) to snap directly onto various carrier boards—such as Carrier Board 3 (FPV) or custom OEM carrier platforms. Outfitted with dual InvenSense IIM-42653 IMUs, an AK09940A magnetometer, and a DPS368 barometer, the Control N1 offers defense contractors, sUAS airframe manufacturers, and academic robotics labs a scalable, NDAA-compliant flight control core.

Technical Specifications

• Brand / Manufacturer: 3DR

• Model Identifier: Control N1 Flight Controller (CN1)

• Main Processor: STMicro STM32H743 Arm Cortex-M7 (480 MHz, 1 MB RAM, 2 MB Flash, 8 MB EEPROM)

• Inertial Measurement Units (IMUs): 2x InvenSense IIM-42653 (6-DoF)

• Magnetometer: Asahi Kasei AK09940A

• Barometer: Infineon DPS368

• Software Compatibility: Fully compatible with ArduPilot and PX4 flight stacks

• Interface / Connectors: Amphenol BergStak high-density board-to-board connectors

• I/O Capabilities: Up to 12x PWM/DShot outputs, 7x Serial/UARTs, 2x FDCAN, 2x I2C, 1x SPI, 1x SDIO/SDMMC, 1x USB-FS

• Input Voltage (VDD): 4.8V - 6.0V DC (Requires 5V external power supply via carrier board)

• Typical Current Draw: ~230 mA

• Operating Temperature: -40°C to +85°C

• Dimensions (L x W x H): 17.6 mm x 28.15 mm x 3.8 mm (0.69" x 1.11" x 0.15")

• Net Weight: 2.38 grams (0.084 oz)

• Onboard Storage: Integrated microSD socket (32GB card included)

• Manufacturing Origin & Compliance: Made in the USA, NDAA Compliant

What Is Included

• (1) 3DR Control N1 Autopilot Module (Bare Board)

• (1) 32GB MicroSD Card