• Beitian BT-M002H GNSS module board front view with USB port, 4 mounting holes, and SMA antenna connector
  • Beitian BT-M002C differential L1/L5 high-precision GNSS module PCB, front and back views with SMA connector
  • Beitian BT-M002 series differential L1/L5 GNSS module promo graphic showing built-in compass and dual-frequency label
  • BT-M002C BDS module product features graphic with angled board view and listed size, voltage, and baud rate
  • Application scenario graphic for Beitian GNSS module with icons for smart device, agriculture, car navigation, and time sync
  • Package contents list: BT-M002C series module, 1.25/6P serial cable with lock, and USB to Type‑C cable
  • Product parameters chart for BT-M002H GNSS module: 54×34×11 mm, 11 g, frequency range GPS L1 and BDS B1
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Beitian BT-M002 Series Differential L1/L5 High-Precision GNSS Module with IST8310 Compass for UAV/Vehicle

Beitian BT-M002 Series Differential L1/L5 High-Precision GNSS Module with IST8310 Compass for UAV/Vehicle

Beitian

$64.86 USD
$64.86 USD
Rea SlutsÄld
Skatter ingÄr. Frakt berÀknas i kassan.
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Overview

Beitian BT-M002 series is a differential L1/L5 GNSS module family with multiple variants, including options with a built-in electronic compass (IST8310). Beitian GNSS modules, antennas and receivers are widely used in UAV & FPV drones, flight control, aerial surveying and mapping, precision agriculture, geodetic survey, deformation monitoring, marine navigation, automotive positioning, industrial IoT, timing synchronization, robotics, Arduino DIY and other high-precision positioning fields.

Models: BT-M002H, BT-M002G, BT-M002, BT-M002Y, BT-M002E, BT-M002M, BT-MO02J.

Key Features

  • L1/L5 frequency (as specified per model).
  • High-performance output data (default 115200bps is shown for RTK modules).
  • Type-C interface (shown on module examples and listed as USB interface Type-C in specifications).
  • Electronic compass support (built-in electronic compass IST8310 is listed for BT-M002 in the specifications).
  • Antenna network design: impedance matching (50Ω) and antenna VSWR < 1.6; includes antenna detection and short-circuit protection functions.
  • Customization statements shown: can be debugged according to requirements; modules can be customized according to the sample or concept.

For development materials (instruction manual, example program, host computer software, and serial port driver) and customization support, contact support@rcdrone.top or visit https://rcdrone.top/.

Specifications

Model Comparison (BT-M002 / BT-M002C / BT-M002E / BT-M002G / BT-M002H)

Parameter BT-M002 BT-M002C BT-M002E BT-M002G BT-M002H
Chip M9140-KB B1O2 NEO-M8T B1I301IN 6558F
Frequency GPS L1 C/A, QZSS L1 C/A/S, GLONASS L10F, BDS B1I, Galileo E1B/C, SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN BDS: B1I, B1C, B2a, B2I GPS/QZSS L1 C/A, GLONASS L10F, BeiDou B1 SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN, Galileo E1B/C GPS L1, GLONASS G1, BDS B1, Galileo E1, QZSS L1 GPS L1 BDS B1
Channel 92 Searching Channel 150 72 Search Channels 120 72 Search Channels
Sensitivity Cold start -148dBm; Hot start -159dBm Tracking -158dBm; Capture -143dBm Tracking -167 dBm; Cold start -157 dBm Cold Start -148dBm; Hot Start -159dBm Cold start -148dBm; Hot start -156dBm
Positioning accuracy Position Horizontal 1.5 m CEP (with SBAS) Single point positioning (RMS) 2.5m CEP Horizontal accuracy 2.5 m CEP Horizontal accuracy 1.5 m CEP 2.0 m CEP 2D RMS SBAS-assisted (in open sky)
Speed accuracy 0.05m/s 0.1m/s CEP - 0.1m/s CEP 0.1m/s 95% (SA off)
PPS time accuracy 30ns 20ns <20 ns 30ns 30ns
Start Time Cold Start 24s; Warm Start 2s; Hot Start 2s Cold start 30s; Warm start 2s Cold start 25s; Warm start 2s Cold start 28s; Warm start 1s Cold start 32s; Reacquisition 1s; Hot start 1s
Baud rate (bps) 4800 - 921600, default 38400bps 4800 - 921600, default 38400bps 4800 - 921600, default 96200bps 9600 to 2,000,000 bps, default 115,200 bps 4800bps - 921600bps, default 9600bps
Level TTL TTL TTL TTL TTL
Output protocol NMEA, UBX NMEA 0183 NMEA NMEA, UBX NMEA-0183
Update Rate 0.25Hz-25Hz, default 1Hz 10Hz Heading update frequency up to 4 Hz 1-20 Hz (default: 10 Hz) 1Hz-10Hz, default 1Hz
FLASH support support support support support
Height Altitude <=50,000m; Velocity <=500m/s; Acceleration <=4g Altitude <=50,000m; Velocity <=500m/s; Acceleration <=4g Altitude <=50,000m; Velocity <=500m/s; Acceleration <=4g Altitude <=50,000m; Velocity <=500m/s; Acceleration <=4g Altitude <=50,000m; Velocity <=515m/s; Acceleration <=4g
Voltage 3.6-5.5V, typical:5.0V 3.6-6.0V, typical:5.0V 3.6-5.5V, typical:5.0V 3.6-5.5V, typical:5.0V 3.6-5.5V, typical: 5.0V
Current 80mA/5.0V 40mA/5.0V 32mA/5.0V 20mA/5.0V 50mA/5.0V
Size 54*34*11mm 54*34*10.8mm 54*34*11mm 54*34*11mm 54*34*11mm
Weight 15g 11g 15g 11g 11g
Connector 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C
LED PWR LED, PPS LED PWR LED, PPS LED PWR LED, PPS LED PWR LED, PPS LED PWR LED, PPS LED
Compass Built-in IST8310 with electronic compass - - - QMC5883

Model Comparison (BT-M002J / BT-M002K / BT-M002L / BT-M002M / BT-M002Y)

Parameter BT-M002J BT-M002K BT-M002L BT-M002M BT-M002Y
Chip RTK GNSS Module ATGM332D-6N BPD-126 UM662N -
Frequency BDS: B1I (B2I) (B3I) (B1C)(B2a); GPS: L1C/A, L2P(W), L5; GLONASS: L1, L2; Galileo: E1, E5b, E5a; QZSS: L1, L2, L5 - BDS: B1I, B1C, B2I, B2a BDS: B1I, B1C*, B2a; GPS: L1, L5; Galileo: E1, E5a; QZSS: L1, L5 BeiDou B1I, B1C, B2I, B2a; GPS/QZSS L1C/A, L5; GLONASS G1; Galileo E1, E5a; NAVIC/IRNSS L5; SBAS L1, L5
Channel 1408 channel, based on Nebulas IV - 150 - 200
Sensitivity - Cold start -148dBm; Hot start -156dBm Cold start -148dBm; Hot start -159dBm Cold start -148dBm; Hot start -159dBm Cold start -148dBm; Hot start -159dBm
Positioning accuracy Plane: 1.5 m; Elevation: 2.5 m <1.5m (CEP50) Horizontal 1.5m CEP; Vertical 2m CEP Single Point Positioning (RMS) 1.0m CEP (dual-frequency, four-system, open sky) Horizontal 1.5m CEP; Vertical 2m CEP
RTK Accuracy Plane: 0.8 cm 1 ppm; Elevation: 1.5 cm 1 ppm - Horizontal 0.01 m 1 ppm CEP; Vertical 0.02 m 1 ppm CEP 1cm (Open Sky) Horizontal 0.01 m 1 ppm CEP; Vertical 0.02 m 1 ppm CEP
Speed accuracy 0.03m/s <0.1m/s (1g) 0.1m/s CEP 0.1m/s 0.1m/s CEP
PPS time accuracy 20ns <20 ns 20ns - 20ns
Start Time Cold start <30 s; Initialization time <5 s (typical value) Cold start <23s; Hot start <1s; Reacquisition <1s Hot start <1s; Cold start <28s; AGNSS <1.5s Cold start 24s; Hot start 1s; Reacquisition 1s -
Baud rate (bps) 4800bps - 921600bps, default 115200bps Baud rate default 115200 bps, 8 data bits, no parity, 1 stop bit Default 115200bps Default 115200bps -
Level TTL TTL TTL RS-232 TTL
Output protocol NMEA-0183, Unicore* NMEA0183 4.1 NMEA0183, RTCM 3.3 NMEA-0183, Unicore* NMEA-0183, RTCM3.X
Update Rate 20Hz positioning 1Hz (default), up to 10Hz PVT 20Hz (maximum); RAW 20Hz (maximum); RTK 10Hz (maximum); IMU RAW 100Hz (maximum) 1Hz-10Hz PVT 20Hz (maximum); RAW 20Hz (maximum); RTK 10Hz (maximum); IMU RAW 100Hz (maximum)
FLASH - - support - -
Height Altitude 18 km - Altitude 10km; Speed <=515 m/s - -
Voltage DC 3.6V-6.0V, typical: 5.0V DC 3.6-5.5V, typical: 5.0V DC 3.6V-5.5V, typical: 5.0V DC 3.6V-6.0V, typical: 5.0V DC 3.6V-6.0V, typical: 5.0V
Current 40mA/5.0V Normal 42mA/5.0V Normal 50mA/5.0V 109mA/5.0V 80 mV (typical value)
Size 54*34*11mm 54*34*11mm 54*34*11mm 54*34*11mm 54*34*11mm
Weight 11g 15g 15g 10.5g 15g
Connector 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C 1*1.25/6P with lock, horizontal SMD socket; 1*USB interface Type-C
LED TX LED, PPS LED PWR LED, PPS LED PWR LED, PPS LED PWR LED, PPS LED PWR LED, PPS LED

Detailed Specifications (BT-M002 / M9140-KB + IST8310 as shown)

Item Description
Chipset M9140-KB
Frequency GPS L1 C/A, QZSS L1 C/A/S, GLONASS L10F, BDS B1I, Galileo E1B/C, SBAS L1 C/A: WAAS, EGNOS, MSAS, GAGAN
Receiving Format GPS, GLONASS, BDS, GALILEO, SBAS and QZSS
Channels 92 Searching Channel
Sensitivity (Tracking) -167dBm
Sensitivity (Reacquisition) -160dBm
Sensitivity (Cold Start) -148dBm
Sensitivity (Hot Start) -159dBm
Position Horizontal 1.5 m CEP (with SBAS)
Velocity 0.05m/s
Dynamic heading accuracy 0.3 deg
1PPS time accuracy RMS 30ns; 99% 60ns
Acquisition Time (Cold Start) 24s
Acquisition Time (Warm Start) 2s
Acquisition Time (Hot Start) 2s
Support Rate 4800bps - 921600bps, Default 38400bps
Data Level TTL Level
Data Protocol NMEA, UBX
NMEA Message RMC, VTG, GGA, GSA, GSV, GLL
Update Rate 0.25Hz-25Hz, Default 1Hz
Second pulse 0.25 Hz to 10 MHz configurable, the default period is 1s, and the high level lasts for 100ms
FLASH With FLASH, the configuration can be changed, and the power will not be lost
Operational Limits (Altitude) <=50,000m
Operational Limits (Velocity) <=500m/s
Operational Limits (Acceleration) <=4g
VCC DC Voltage 3.6V-5.5V, Typical: 5.0V
Current 80mA/5.0V
Dimension 47*34*11.2mm
Weight 15g
Connector 1.25 pitch 6pin seat with lock; USB interface Type-C
Operating Temp -40°C ~ +85°C
Storage Temp -40°C ~ +105°C
PWR light The red light is always on when the power is on, indicating that there is power input
PPS light Not positioned, the light is off; after 3D positioning, the blue light flashes
Compass Built-in with electronic compass IST8310

Pin Description (as shown)

Interface PIN Name I/O Describe Characteristics
UART1 1 GND G Ground Ground
UART1 2 VCC I Main power supply, DC input DC 3.6V-5.5V; recommended 5.0V
UART1 3 RX I UART communication interface, TTL level GPS data input pin
UART1 4 TX O UART communication interface, TTL level GPS data output pin
UART1 5 SCL I Serial clock-I2C bus master/slave clock Compass clock pin
UART1 6 SDA O Serial data-I2C bus master/slave data Compass data pin
Type-C - - - Connect to computer, output real-time data, change configuration -

Indicator light (as shown)

  1. Blue light, PWR light: When power on, the red light is always on, indicating that there is power input.
  2. Red light, PPS light: the light does not turn on when it is not positioned; after 3D positioning, it starts to flash.

Dimensions (mechanical drawing values shown)

  • 34.00 ±0.3
  • 28.00 ±0.3
  • 54.00 ±0.3
  • 47.00 ±0.3
  • 41.00 ±0.3
  • 4-∅3.10
  • 5.5 ±0.2
  • 1.20
  • 2.50
  • 11.0 ±0.3
  • 16.79
  • 19.33
  • 1.40
  • 2.54
  • 7.62

Applications

  • Precision agriculture
  • Surveying and mapping
  • Drone/UAV navigation
  • Automotive/vehicle positioning

What's Included

  • Example product list shown: BT-M002C module
  • USB interface Type-C cable
  • 1.25 6P cable with lock

Note: The shown product list indicates the items paired with different solutions; each module has its corresponding specification sheet.

Details

BT-M002 series GNSS module comparison chart with variants and key specifications table

Choose the right BT-M002 series variant by comparing supported GNSS bands, sensitivity, and interface options.

Support customization graphic for Beitian GNSS modules with development materials and customer service info

Custom firmware/debug support and development materials are available for integration into UAV, vehicle, and robotics projects.

Beitian BT-M002 L1/L5 RTK GNSS module board with Type‑C port and dual SMA antenna connectorsL1/L5 dual-frequency RTK module benefits with Type‑C connection and IST8310 compass vs standard GPS modules

Dual-frequency L1/L5 design, Type‑C connectivity, and optional IST8310 compass support help improve heading and positioning performance.

Built-in IST8310 electronic compass feature graphic for BT-M002 GNSS module

The integrated IST8310 electronic compass provides reliable heading data for flight controllers and vehicle navigation systems.

High-performance satellite search and 115200 bps output data graphic for RTK GNSS moduleHigh-precision dual-frequency RTK GNSS module overview with product specifications tableBT-M002 GNSS module pin definition, wiring interface table, indicator lights, and mechanical dimensions

Pin definitions, indicator LEDs, and board dimensions help streamline wiring and mechanical fit during installation.

GNSS module application scenarios graphic: precision agriculture and surveying/mapping use casesProduct list graphic with BT-M002C module, USB Type‑C cable, and 1.25 6P cable with lock

Package options may include the module plus a Type‑C USB cable and a 1.25 6‑pin locking cable for quick hookup.

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