Overview
The BOYING DRACO Series is a comprehensive suite of industrial autopilot flight controllers designed for a wide range of UAV applications, from compact mapping drones to large-scale heavy-lift platforms. Fully compatible with PX4 open-source firmware, the DRACO series offers exceptional versatility, precision, and reliability, supporting both standard and advanced multirotor configurations.
From integrated power modules to seamless GNSS+RTK positioning, the DRACO ecosystem enables plug-and-play deployment with intuitive wiring and robust interface management.
Key Features
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Voltage Input: 6S–28S (model dependent)
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CAN Interfaces: Single or dual CAN buses
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PWM Outputs: 8 to 16 depending on model
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Operating Temperature: -20°C to 70°C
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Hover Accuracy: ±0.5m (horizontal and vertical)
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Maximum Inclination Angle: 35°
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PX4 Firmware Compatibility: Supports multirotor, VTOL, helicopter, boat, and car types
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Cloud Platform: Integrated with BOYING Industrial Bit Data Cloud
Advanced Modular Design
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Independent ports for all modules, including GNSS, RTK, power input, telemetry, LEDs, and CAN extensions
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XT30 power port on select models like DRACO MINI2 for direct 6–14S battery connection
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Anti-reverse plug design for main and auxiliary connectors simplifies installation and eliminates error
Platform Compatibility
Supports clockwise, counter-clockwise, and asymmetric multirotor configurations:
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X4, +4
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X6, +6
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X8, +8
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Coaxial X4 and 4+4 propeller systems
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Asymmetric models: 3+3, 4+2, 4+4, and more
System Expansion & Peripherals
The DRACO controller natively supports integration with:
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Dual-band GNSS modules
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360° omnidirectional LiDAR
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Edge onboard computing systems
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High-voltage ESCs
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PWM signal I/O
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S.BUS receiver input
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4G data transmission modules
LED Status Indicators
The integrated LED provides at-a-glance system status and diagnostic feedback:
| LED Behavior | Indication |
|---|---|
| No light | LED fault or log update |
| Red/White alternate flashing | FC initializing |
| Red/Yellow/Blue/Green flash | No device calibration |
| Red/Blue/Green flashing | Calibration/testing in progress |
| Yellow slow flash | RC fault or low voltage protection |
| Purple solid | Compass fault |
| Purple dual flash | Accelerometer fault |
| Purple fast flash | Unlock failure or init incomplete |
| Red solid | Log memory failure |
| Red/Yellow alternate | GPS failure |
| Blue solid or flashing | No GPS |
| Green solid or flashing | GPS locked |
| Green fast flashing | High-precision GPS lock |
Remote Controller S.BUS Channel Mapping
The DRACO autopilot system fully supports S.BUS receivers. For common transmitters, channel assignments are preconfigured:
| Channel | Function | Notes |
|---|---|---|
| 1 | Roll | |
| 2 | Pitch | |
| 3 | Throttle | |
| 4 | Yaw | |
| 5 | Flight Mode | Used for flight mode switching and calibration |
| 6 | Aux1 | Preconfigured auxiliary channel |
| 7 | Return-to-Home | Also used as failsafe trigger (value ≥ 975) |
| 8 | AB Switch | Enables AB path function |
| 9–14 | Auxiliary | Optional programmable inputs |
For receivers without clear failsafe status on throttle, Channel 7 must be configured as the failsafe trigger.
Flight Controller Installation Guidelines
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Installation Orientation: Align FC with aircraft nose direction; GNSS module heading must match FC orientation
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Interference Avoidance: GNSS and RTK modules should be positioned away from high-current devices, high-frequency EMI sources, or active antennas
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GPS Position Correction: DRACO supports precise GPS-based installation correction (±1m with 0.01 resolution)
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Max Attitude Angle: Factory-configured to restrict unsafe pitch/roll during flight
Model Summary
| Model | Voltage | Weight | CAN | Size (mm) | Key Advantage |
|---|---|---|---|---|---|
| DRACO D1 | 6–28S | 159g | 1 | 100×66×25 | High-load UAVs, stable all-around control |
| DRACO MINI2 | 6–14S | 106g | 1 | 74×44×23 | Built-in power, compact for light drones |
| DRACO D3 | 6–28S | 68g | 1 | 67×44×27 | Lightweight, modular build flexibility |
| DRACO SUPER4 | 12–28S | 180g | 2 | 106×62×28 | Flagship, Route 12 bus, advanced power |
| F7 Open | 6–28S | 49g | 2 | 73×48×16 | Open-source PX4, 16 PWM, multi-platform |
Applications
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Powerline inspection
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Surveying and mapping
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Agricultural spraying
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Emergency rescue
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VTOL systems
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Unmanned boats or ground vehicles
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Delivery and logistics UAVs
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