Mini GPS/BDS Unit (AT6558)

Woodster

I have an M5StickC and have tried to get it to work with the Mini GPS/BDS Unit (AT6558), link to product: https://m5stack-store.myshopify.com/products/mini-gps-bds-unit?_pos=1&_sid=fd2c01a5a&_ss=r

I know it's meant for the M5 Core but I thought with it having a standard grove port it might work. Is this is the problem that that the functionality of the port differs between models?

Woodster

@woodster I have managed to find this article in Japanese which Google translated nicely for me: https://slanew.com/news/612

All working now - so hopefully this will help other people trying to do the same :)

rgrokett

Just in case the linked document disappears, here's the gist:
Be sure the TinyGPS++ library is installed in
Arduino\libraries

TinyGPS++ here:
https://github.com/mikalhart/TinyGPSPlus/releases

// If your M5Stick is the original, use:
#include <M5StickC.h>　

// If its M5 Stick Plus 2 use:
#include "M5StickCPlus2.h" 

//The rest should be default:
#include "TinyGPS++.h"       
TinyGPSPlus gps;
HardwareSerial GPSRaw(2);     
void setup() {
  
  M5.begin(); 
 
  M5.Lcd.setRotation(3);
  M5.Lcd.fillScreen(BLACK);
  M5.Lcd.setTextSize(2);  // Size 1 or 2 as needed
  M5.Lcd.setCursor(20, 15);
  M5.Lcd.println("GPS UNIT TEST");
  GPSRaw.begin(9600, SERIAL_8N1, 33, 32); // M5StickC?GROVE???
  while (!GPSRaw) {
 ;                            // ???????????????
  }
} 
void loop() {
  while(GPSRaw.available()) {
    gps.encode(GPSRaw.read());
    if (gps.location.isUpdated()) {
      M5.Lcd.setCursor(20, 30);
      M5.Lcd.print("LAT="); M5.Lcd.print(gps.location.lat(),6);
      M5.Lcd.setCursor(20, 45);
      M5.Lcd.print("LNG="); M5.Lcd.print(gps.location.lng(),6);
      M5.Lcd.setCursor(20, 60);
      M5.Lcd.print("ALT="); M5.Lcd.print(gps.altitude.meters());
    }
  }
}