Introducció
The Beitian BE-252Q GPS Module is a high-performance GNSS receiver designed for FPV, RC drones, UAVs, and other remote control applications. It features the M10050 chip, integrated QMC5883 compass, and supports NMEA and UBX dual protocols. This manual provides detailed instructions for its installation, operation, and specifications.

Especificacions
The following table details the technical specifications of the BE-252Q GPS Module:
| Item | Característic | Descripció |
|---|---|---|
| Característiques Elèctriques | Xip | M10050 |
| Tipus de receptor | GPS L1 C/A, QZSS L1 C/A/S, BDS B1I/B1C, Galileo E1B/C, SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN | |
| Default position system | GPS, BDS, GALILEO | |
| Augmentation system | SBAS, QZSS | |
| Canal | N/A | |
| LED | Built-in LED (TX LED: blue, PPS LED: red) | |
| Brúixola | Built-in compass, with electronic compass IC QMC5883 | |
| Sensibilitat | Seguiment i navegació | -166 dBm |
| Readquisició | -160 dBm | |
| Arrancada en fred | -148 dBm | |
| Inici calent | -160 dBm | |
| Precisió | Posició horitzontal | 2.0 m CEP |
| Velocitat | 0.05 m/s | |
| Dynamic heading | 0.3 graus | |
| Pols de temps | RMS 30ns, 99% 60ns | |
| Adquisició | Arrancada en fred | 27 s |
| Inici en calent | 1s | |
| Aided start | 1s | |
| Sortida de dades | Velocitat de transmissió | 4800bps - 921600bps, default 115200bps |
| Nivell | Nivell TTL | |
| Protocol | NMEA, UBX | |
| Missatges NMEA | RMC, VTG, GGA, GSA, GSV, GLL | |
| Taxa d'actualització | 0.25Hz-18Hz, default 10Hz | |
| FLASH | With FLASH, the configuration can be changed, and the power will not be lost. | |
| Límits operatius | Altitud | 80,000 m |
| Velocitat | 500 m/s | |
| Dinàmica | <4 g | |
| Consum d'energia | Voltage | DC 3.6V-5.5V, typical: 5.0V |
| Actual | 15mA/5.0V | |
| Especificacions físiques | Dimensió | 25 mm * 25 mm * 7.7 mm |
| Pes | 13.5 g | |
| Connector | 1.00mm 6pins Connector | |
| Temperatura | En funcionament | -40 ℃ ~ +85 ℃ |
| Emmagatzematge | -40 ℃ ~ +105 ℃ |
Contingut del paquet
El paquet estàndard inclou els següents elements:
- 1x Beitian BE-252Q GPS Module
- 1x Connection Cable (Note: Each module matches a different cable, consult seller for details)
- 1x 3M Adhesive Tape

Configuració i instal·lació
Dimensions
Refer to the diagram below for the physical dimensions of the module:

Descripció del pin
The module features a 6-pin connector. The pinout and their functions are described below:

| PIN | Nom | E/S | Descripció |
|---|---|---|---|
| 1 | TX | O | Sortida de dades en sèrie |
| 2 | RX | I | Entrada de dades en sèrie |
| 3 | GND | G | Terra |
| 4 | VCC | I | DC 3.6V~5.5V supply input, Typical: 5.0V |
| 5 | SCL | I | Compass SCL (I2C Clock) |
| 6 | SDA | O | Compass SDA (I2C Data) |
Compass Orientation
The electronic compass IC QMC5883's position indicates the direction. Ensure correct orientation for accurate heading data.

Instruccions de funcionament
Llums indicadores
- TX LED (Blue Light): This light flashes when the module is powered on and actively outputting data.
- PPS LED (Red Light): This light remains off if the module has not achieved a GPS fix. Once 3D positioning is established, the red light will begin to flash, indicating a valid position lock.
Protocol de sortida de dades
The BE-252Q GPS Module supports both NMEA and UBX protocols for data output. The default baud rate is 115200bps, but it is configurable from 4800bps to 921600bps. The module's configuration can be changed and saved to its FLASH memory, ensuring settings are retained even after power loss.
NMEA Messages: The module outputs standard NMEA messages including RMC, VTG, GGA, GSA, GSV, and GLL, providing essential navigation data such as position, velocity, and satellite information.
UBX Messages: For more detailed and proprietary data, the module supports UBX messages, specifically UBX-NAV-PVT (Navigation Position Velocity Time Solution), which combines position, velocity, and time solutions, including accuracy figures.
Manteniment
- Condicions ambientals: Keep the module dry and avoid exposure to extreme temperatures outside its operating range (-40℃ to +85℃).
- Neteja: If necessary, gently clean the module with a soft, dry cloth. Do not use liquids or solvents.
- Manipulació: Handle the module with care to prevent physical damage to the components or connectors.
Resolució de problemes
- No Data Output (Blue TX LED not flashing):
- Check power supply (VCC) is within 3.6V-5.5V.
- Verify correct wiring of TX/RX pins to your flight controller or receiver.
- Ensure the baud rate setting on your flight controller matches the module's default (115200bps) or configured baud rate. - No GPS Fix (Red PPS LED not flashing):
- Ensure the module has a clear view of the sky, free from obstructions.
- Allow sufficient time for a cold start (up to 27 seconds). Hot starts are faster (1 second).
- Check for strong electromagnetic interference from other electronic components. - Incorrect Heading Data (Compass):
- Verify the compass orientation as per the installation diagram.
- Perform compass calibration if supported by your flight controller software.
- Keep the module away from magnetic fields generated by motors, power wires, or other ferrous materials.
Consells per a l'usuari
- For optimal performance, mount the GPS module as far as possible from other electronics that might generate electromagnetic interference.
- Always ensure the module has a clear line of sight to the sky for quick and accurate satellite acquisition.
- If experiencing issues with data consistency, try resetting the module's configuration to default settings and reconfigure as needed.
Garantia i Suport
For detailed technical support, advanced configuration, or warranty inquiries, please refer to the official datasheet or contact the seller directly. The datasheet provides in-depth information on protocol messages and advanced features.
A PDF version of the datasheet can be found at: BE-252Q GPS Module Datasheet
