GPS 모듈 -Quectel L70

(GPS 4 click)

IMG_0242

IMG_0242

개요

  • 본 제품은 Quectel 사의 L70 GPS 모듈을 탑재한 제품입니다.
  • 3.3V 혹은 5V로 동작이 가능하며, MCU와 UART로 통신이 가능합니다.

특징

  • L70 module features

    L70, an SMD type module, brings the high performance of MTK positioning engine to the industrial applications with a compact profile, ultra low power consumption and fast positioning capability.

    Combining advanced AGPS called EASY™ (Embedded Assist System) and proven AlwaysLocate™ technology, L70 achieves the highest performance and fully meets the industrial standard. EASY™ technology ensures L70 can calculate and predict orbits automatically using the ephemeris data (up to 3 days) stored in internal RAM memory, so L70 can fix position quickly even at indoor signal levels with low power consumption.

    With AlwaysLocate™ technology, L70 can adaptively adjust the on/off time to achieve a balance between positioning accuracy and power consumption according to the environmental and motion conditions.

    How it works

    A constellation of satellites sends a continuous signal towards Earth. Onboard every satellite is an atomic clock, and all of them are synchronized, thanks to a reference time scale defined by the whole system. So, that the signals coming from the different satellites of the same constellation share the same reference time scale.

    The user wanting to use GPS to determine its position must have an antenna that receives the signals coming from the satellites, and a receiver that translates these signals. The antenna position will be deduced from the measurements of the time delay between the emission time (satellite) and the reception time (receiver) for at least 4 signals coming from different satellites.

    Specifications

    Type GPS
    Applications Navigation devices based on GPS
    On-board modules Quectel's L70
    Key Features Ultra low power consumption in tracking mode, 12mA, High sensitivity, -165dBm@Tracking, -148dBm@Acquisition
    Key Benefits AlwaysLocate™, an intelligent controller of periodic mode
    Interface UART
    Input Voltage 3.3V or 5V
    Click board size L (57.15 x 25.4 mm)

    Pinout diagram

    This table shows how the pinout on GPS 4 click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

    Notes Pin Mikrobus logo.png Pin Notes
    Module Force ON FORCE ON 1 AN PWM 16 STANDBY Module Standby
    Module Reset RST 2 RST INT 15 NC
    NC 3 CS TX 14 TX Module Transmit line
    NC 4 SCK RX 13 RX Module Receive line
    NC 5 MISO SCL 12 NC
    NC 6 MOSI SDA 11 NC
    Power supply +3.3V 7 3.3V 5V 10 +5V Power supply
    Ground GND 8 GND GND 9 GND Ground

    Jumpers and settings

    Designator Name Default Position Default Option Description
    JP1 VCC-BCKP ON VCC BCKP Battery connection; unsolder when battery is connected
    JP2 VCCIO 3V3 Level selector

    Buttons and LEDs

    Designator Name Type Description
    LD1 PWR LED Power Indication LED
    LD2 PPS LED GPS tracking indicator

문서

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