Overview
Beitian BE-166 is a GNSS flight control module with a built-in M10050 ceramic patch antenna for compact positioning systems. It uses a 12-pin SMD package and is designed for serial-data GNSS output in embedded navigation and control setups.
The receiver type supports GPS L1 C/A, QZSS L1 C/A/S, BDS B1I/B1C, Galileo E1B/C, and SBAS L1 C/A, including WAAS, EGNOS, MSAS, and GAGAN. The module provides multi-constellation positioning with TTL-level output.
Key Features
- Integrated patch-type GNSS antenna module for compact installations.
- Supports GPS, BDS, Galileo, QZSS, and SBAS signal reception.
- Low power design with current of 30mA/3.3V and power consumption under 100mW.
- Supports FLASH memory, sleep mode, hot start, and software upgrades via serial port from a host computer.
- Includes antenna detection and short-circuit protection functions.
- 1PPS output can be used for synchronization or timing.
- Small size and easy to use for embedded positioning applications.
Specifications
| Model | BE-166 |
|---|---|
| Chip | M10050 |
| Receiver type | GPS L1 C/A, QZSS L1 C/A/S, BDS B1I/B1C, Galileo E1B/C, SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN |
| Sensitivity | Cold Start -148dBm; Hot Start -160dBm |
| Horizontal | 2.0m CEP |
| Velocity | 0.05m/s |
| Dynamic heading | 0.3 deg |
| PPS time accuracy | RMS 30ns; 99% 60ns |
| Cold boot | 27s |
| Warm boot | 1s |
| Recapture | 1s |
| Baud rate (bps) | 4800bps - 921600bps, default 115200bps |
| Output level | TTL Level |
| Output protocol | NMEA, UBX |
| Frequency of updates | 0.25Hz - 18Hz, default 1Hz |
| FLASH | With FLASH |
| Seconds pulse | 0.25 Hz to 10 MHz |
| Work restrictions | High 80,000m; Speed 500m/s; Gravitational acceleration <4g |
| Voltage | DC 2.7V-3.6V, typical 3.3V |
| Current | 30mA/3.3V |
| Size | 16*16*6.6mm |
| Weight | 6g |
| Connector | 12pin SMD package |
| Operating temperature | -40 C to +85 C |
| Storage temperature | -40 C to +105 C |
| Ceramic antenna thickness | 4mm |
Pin Description
| Pin | Name | I/O | Description |
|---|---|---|---|
| 1 | RXD | I | UART communication interface, TTL level; GPS data entry pin |
| 2 | TXD | O | UART communication interface, TTL level; GPS data output pin |
| 3 | GND | G | Ground |
| 4 | VCC | I | Main power supply, DC input; DC 2.7V-3.6V, typical 3.3V |
| 5 | V_BCKP | I | Standby power supply |
| 6 | 1PPS | O | 1PPS low level before positioning, 1s period after positioning, high level 100ms second pulse output; pulse can be used for synchronization or timing without holding |
| 7 | NC | - | Empty foot |
| 8 | NC | - | Empty foot |
| 9 | NC | - | Empty foot |
| 10 | NC | - | Empty foot |
| 11 | NC | - | Empty foot |
| 12 | GND | G | Ground |
The exact pin order depends on the actual product. For document requests or integration support, contact support@rcdrone.top.
Applications
Suitable for UAV and FPV drones, flight control, aerial surveying and mapping, precision agriculture, geodetic survey, deformation monitoring, marine navigation, automotive positioning, industrial IoT, timing synchronization, robotics, and Arduino DIY projects.
Details

Integrated GNSS positioning for compact UAV and embedded navigation systems.

Compact patch-antenna design keeps the module small while supporting precise positioning.

Multi-constellation reception helps improve availability across different operating environments.

Positioning data is sent through the serial port for straightforward integration with host devices.

The small footprint supports tight layouts where space and power use matter.

Customization support is available for product adjustments and secondary development needs.

Specification details highlight the BE-166 package, receiver type, and operating ranges.

Designed for compact UAV installations, the module fits drone and fixed-wing navigation builds.

Core features include low power operation, integrated antenna design, and serial output.

Dimension references make it easier to plan enclosure clearance and PCB layout.

Pin and wiring references support setup with flight controllers, USB-to-TTL adapters, and PCs.

Signal band coverage supports GPS, BDS, and Galileo reception for navigation use.

NMEA-0183 output makes the module practical for devices that need standard position data.

Measured sensitivity, startup time, and power data summarize the module's operating behavior.

Simple wiring examples show how to connect the module for debugging and controller integration.

The module suits compact positioning projects across aerial, ground, and smart-device applications.

A broad product lineup supports different GNSS configurations and project requirements.
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