RPI GPS Board

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Hardware Configuration

GPS

3-way jumper setup

Board Interface RPI Default
SD CS Selection via 3-way jumper: GPIO8 or GPIO7 IO7
RF(LORA) CS Selection
  • via 3-way jumper: GPIO8 or GPIO7
  • via 2-way jumper: GPIO25
IO8
RF(LORA) DIO0 GPIO4 IO4
RF(LORA) RST GPIO17 IO7
SD / RF: SCK MOSI MISO GPIO 9 / 10 / 11 IO 9/10/11
GPS_INT GPIO 22 IO22
GPS_1PPS On board LED or GPIO27 LED


Software Usage

  • Use serial to read raw data, tutorial here: RPI UART, please make sure login shell on uart is turned off
  • Data output example:
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPTXT,01,01,01,NMEA unknown msg*58
$GPRMC,,V,,,,,,,,,,N*53
$GPVTG,,,,,,,,,N*30
$GPGGA,,,,,,0,00,99.99,,,,,,*48
$GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30
  • recommanded GPS parsing application GPSD

Lora

Note

  • For raspberry Pi 4, if it can not boot well, please remove the 3.3V power jumper, or cut off the pin of 3.3V to raspberry pi.