Matrix - GPS

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1 Introduction

GPS

The matrix GPS module is a small GPS module with high performance. It can be used in navigation devices, four-axle drones and etc.

  • U-blox NEO-7M GPS module;
  • MAXIM’s high gain LNA chip and high performance porcelain antenna;
  • Support GPS and GLONASS(Russia's Navigation System);
  • Serial Communication: baud rate 为9600, 8 data bits, no parity, 1 stop bit;
  • Horizontal position accuracy: 2.5m CEP;
  • Max navigation update rate: 10Hz;
  • Time To First Fix: 30S;
  • Sensitivity-Tracking & Navigation: -161dBm;
  • Sensitivity-Cold Start: -148dBm;
  • Protocol: NMEA(default)/UBX Binary;
  • Operational Limits – Velocity: 500m/s;
  • Operational Limits- Altitude: 50000m;
  • TXD/RXD resistance: 510 Ohm;
  • Working Temperature: -40 degree Celsius ~ 85 degree Celsius;
  • Supply Voltage:: 5.0V;
  • Supply Current: 22mA;
  • Onboard LED. After the module is powered on the LED will turn on. If the module gets GPS data successfully the LED will be flashing

2 Features

  • UART interface
  • Small
  • PCB Dimension(mm): 40 x 40

GPS-01.PCB

  • Pin Description:
Pin Description
RXD Receive
TXD Transmit
5V Supply Voltage 5V
GND Ground

3 工作原理

  • GPS(Global_Positioning_System)即全球卫星导航定位系统,可向全球用户提供连续、实时、高精度的三维位置、三维速度和时间信息。
  • GPS定位系统包括GPS卫星星座、地面监控系统、GPS信号接收机三部分组成。
  • GPS定位原理是利用高空中的GPS卫星,向地面发射L波段的载频无线电测距信号,地面上的用户接收机实时地连续接收,并计算出接收机天线所在的位置。

4 与NanoPi 2连接使用

4.1 硬件连接

参考下图连接模块Matrix-GPS和NanoPi 2:
GPS_NanoPi_2

连接说明:

Matrix-GPS NanoPi 2
RXD Pin8
TXD Pin10
5V Pin4
GND Pin6

4.2 编译测试程序

4.3 资源链接