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GPS + BDS BeiDou Dual Module

SKU: TEL0132

The GPS + BDS BeiDou Dual Module, featuring the AT6558-based GNSS technology, provides a compact solution for real-time positioning, navigation, and timing across six satellite systems, including BDS and GPS. With 32 tracking channels, it ensures high accuracy (~3m) and is compatible with multiple platforms like Arduino, Raspberry Pi, and STM32, making it versatile for various applications. Its low power consumption (~0.1W) extends operational duration, ideal for projects requiring efficient energy use. This module is a significant advancement in GNSS technology, offering enhanced satellite communication and positioning capabilities.

Overhead shot of a small GPS and Beidou dual mode module with antenna and LED indicator.-DFRobot product sku:TEL0132 image.

Downloadable Resources

  • Docs
  • Tech Specs

    • 1. Getting Started

    This article serves as a beginner's guide to data analysis, focusing on GPS and Beidou systems, the NMEA0318 protocol, and the significance of various data types and formats in positioning and satellite tracking.

    2. Read GPS Data

    This guide demonstrates how to read GPS data using Arduino, detailing hardware setup, software requirements, connection diagrams, and sample code for successful data processing.

    3. $GNRMC GPS Data Analysis

    This article provides a comprehensive guide on using Arduino to analyze $GNRMC GPS data. It includes a detailed breakdown of hardware and software requirements, connection diagrams, and sample code to help users effectively parse and interpret GPS data, making it an invaluable resource for anyone interested in GPS technology and Arduino programming.

    Specification

    Specification
    Operating Voltage 3.3-5V
    Antenna Ports SMA and IPEX
    storage Onboard E2PROM for storing configuration settings
    battery Onboard XH414 rechargeable battery, speed up hot-start and search
    A-GNSS Support
    Cold- start Acquisition Sensitivity -148dBm
    Tracking Sensitivity -162dBm
    Positioning Accuracy 2.5m(CEP50, open field)
    Time to First Fix 32 seconds (or few minutes, depends on the environment)
    Low Power <25mA (work continuously)
    protection function Built-in antenna detection and antenna short circuit protection function
    Dimension 13.1 x 15.7mm/0.52 x 0.62”
    • mit Parameter
    Parameters Symbol Maximum Minimum Unit
    Power Supply Voltage (VCC) Vcc -0.3 3.6 V
    Backup Battery Voltage (VBAT) Vbat -0.3 3.6 V
    Digital Input Pin Voltage Vin -0.3 Vcc+0.2 V
    Maximum acceptable ESD level VESD (HBM) 2000 V
    • erating Conditions
    Parameter Symbol Maximum Typical Minimum Unit
    Power Supply Voltage VCC 2.7 3.3 3.6 V
    Vcc Peak Current(Antenna not included) Ipeak 100 mA
    Backup Power Vbat 1.5 3.0 3.6 V
    Backup Power(Vbat Current) Ibat 10 uA
    Input Pin Vil 0.2*Vcc V
    Input Pin Vih 0.7*Vcc V
    Output Pin (Vol, Io=-12mA) Vol 0.4 V
    Output Pin (Voh, Io=12mA) Voh Vcc-0.5 V
    Active Antenna Output Voltage VCC_RF 3.3 V
    Antenna short circuit protection current (VCC_RF=3.3V) Lant Short 50 mA
    Antenna open circuit current (Power from VCC_RF=3.3V) Lant Open 3 mA
    Antenna Gain Gant 15 30 dB
    • chnical Specification
    Technical Parameter
    Signal Receive BDS/GPS/GLONASS/GALILEO/QZSS/SBAS
    Number of RF channels Three-channel RF, support the full constellation BDS, GPS and GLONASS receiving at the same time
    Cold Start TTFF ≤35s
    Hot Start TTFF ≤1s
    Recapture TTFF ≤1s
    Cold Start capture sensitivity -148dBm
    Hot Start capture sensitivity -156dBm
    Recapture sensitivity -160dBm
    Tracking sensitivity -162dBm
    Positioning precision <2m（1σ）
    Speed measurement precision ＜0.1m/s（1σ）
    Timing precision <30ns（1σ）
    Positioning update rate 1Hz(default), Maximum 10Hz
    Serial port characteristics Baud rate range：4800 bps~115200 bps, default 9600bps, 8 data bits, No check, 1 stop bit
    Protocol NMEA0183
    Max Height 18000m
    Max Speed 515m/s
    Max Acceleration 4g
    Backup battery 1.5V ~ 3.6V
    Supply Voltage 2.7V ~ 3.6V
    GPS&BD Typical power consumption <25mA @3.3V
    Working Temperature -40 to +85℃
    Storage Temperature -45 to +125℃
    Size 10.1mm×9.7mm×2.4mm
    Weight 0.6g

    Pinout

    • PinOut

    TEL0132-02

    Name Function
    VCC Power Input(5V)
    GND Ground
    TX Transmit
    RX Receive
    PPS Pulse Output Per Second

    TEL0132-05

    • Pin Definition
    Number Name I/O Description Electrical
    1 GND I Ground
    2 TXD O Navigation Data Output NMEA0183 Protocol
    3 RXD I Interactive Command Input Configuration Command Input
    4 1PPS O Second Pulse Output
    5 ON/OFF I Module Shutoff control, active Low
    6 VBAT I RTC and SRAM backup power supply Power with 1.5~3.6V to insure a warm start for the module
    7 NC I
    8 VCC I Module Power Input DC 3.3V±10%, 100mA
    9 nRESET I Module Reset Input, active Low Left floating when not used
    10 GND I Ground
    11 RF_IN I Antenna Signal Input
    12 GND I Ground
    13 NC
    14 VCC_RF O Power Output +3.3V, can be used as power for antenna
    15 Reserve Left floating
    16 SDA I/O I2C data interface Left floating
    17

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