srnet:
Try a different GPS buad rate ?
I think I tried them all, but nothing went forward.
HillmanImp:
Sometimes I think the authors of GPS tutorials have done us all a dis-service by encouraging new users to think they can make GPS work without understanding how each component works.
John.
I tried NMEA, unpined tx/rx gps from arduino, then downloaded code like:
// Test code for Adafruit GPS modules using MTK3329/MTK3339 driver
//
// This code just echos whatever is coming from the GPS unit to the
// serial monitor, handy for debugging!
//
// Tested and works great with the Adafruit Ultimate GPS module
// using MTK33x9 chipset
// ------> http://www.adafruit.com/products/746
// Pick one up today at the Adafruit electronics shop
// and help support open source hardware & software! -ada
//This code is intended for use with Arduino Leonardo and other ATmega32U4-based Arduinos
#include <Adafruit_GPS.h>
#include <SoftwareSerial.h>
// Connect the GPS Power pin to 5V
// Connect the GPS Ground pin to ground
// If using software serial (sketch example default):
// Connect the GPS TX (transmit) pin to Digital 8
// Connect the GPS RX (receive) pin to Digital 7
// If using hardware serial:
// Connect the GPS TX (transmit) pin to Arduino RX1 (Digital 0)
// Connect the GPS RX (receive) pin to matching TX1 (Digital 1)
// If using software serial, keep these lines enabled
// (you can change the pin numbers to match your wiring):
SoftwareSerial mySerial(8, 7);
// If using hardware serial, comment
// out the above two lines and enable these two lines instead:
//HardwareSerial mySerial = Serial1;
#define PMTK_SET_NMEA_UPDATE_1HZ "$PMTK220,1000*1F"
#define PMTK_SET_NMEA_UPDATE_5HZ "$PMTK220,200*2C"
#define PMTK_SET_NMEA_UPDATE_10HZ "$PMTK220,100*2F"
// turn on only the second sentence (GPRMC)
#define PMTK_SET_NMEA_OUTPUT_RMCONLY "$PMTK314,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29"
// turn on GPRMC and GGA
#define PMTK_SET_NMEA_OUTPUT_RMCGGA "$PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
// turn on ALL THE DATA
#define PMTK_SET_NMEA_OUTPUT_ALLDATA "$PMTK314,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
// turn off output
#define PMTK_SET_NMEA_OUTPUT_OFF "$PMTK314,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
#define PMTK_Q_RELEASE "$PMTK605*31"
void setup() {
while (!Serial); // wait for leo to be ready
Serial.begin(57600); // this baud rate doesn't actually matter!
mySerial.begin(9600);
delay(2000);
Serial.println("Get version!");
mySerial.println(PMTK_Q_RELEASE);
// you can send various commands to get it started
//mySerial.println(PMTK_SET_NMEA_OUTPUT_RMCGGA);
mySerial.println(PMTK_SET_NMEA_OUTPUT_ALLDATA);
mySerial.println(PMTK_SET_NMEA_UPDATE_10HZ);
}
void loop() {
if (Serial.available()) {
char c = Serial.read();
Serial.write(c);
mySerial.write(c);
}
if (mySerial.available()) {
char c = mySerial.read();
Serial.write(c);
}
}
and when I put gps TX to pin 8, its starting to output to console. Other pins are not outputting anything. But anyway the output looks like previously - im getting some weird symbols.
Get version!
G⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sf⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sf⸮cF ⸮cF ⸮jDG⸮ʃ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jCG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʃ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʃ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sf⸮cF ⸮cF ⸮G⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sf⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʋ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jEG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮,TN⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jD#⸮j⸮⸮G⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jD⸮G⸮ʂ⸮Sf⸮cF ⸮cF ⸮jD⸮⸮⸮⸮⸮G⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʃ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cH ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jD⸮⸮⸮⸮c⸮⸮G⸮T⸮N⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʃ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮⸮G⸮ʂ⸮ST⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʃ⸮Sg⸮cF ⸮cF ⸮jDG⸮ʂ⸮Sg⸮⸮⸮⸮⸮/
There is documentation here:
https://pl.aliexpress.com/item/32951163811.html
Which says baud rate for this gps: (default 9600) can set 1200,4800, 19200,38400, 57600,115200 bps
Anyway, when I set 115200 for this gps, the results look more normal than previous (on 9600).
Get version!
$GNRMC,,V,,,,,,,,,,N*4D
$GNVTG,,,,,\,,,N*2E
$G⸮GGA,,,,,,0,`0,$GNRMC,,V,,,\,,,,,,N*4D
$GNVTG,,,,\,,,,N*2E
$⸮NGGA,,,,,,0\00,99.99,5,,,9
,,9.$,G0GV$GNRMCL,V,,,,,,,,,\N*4D
$GNVT⸮,,,,,,,,,N*bE
$GNGGA,,,,,,0,00,99/99,*A,99E,,)⸮b⸮rR5$,L*L*$GNRMC,,⸮,,,,,,,,,,NZ4D
$GNVTG\,,,,,,,,N*2E
$GNGGA,,,,,,0,00,99.9y,*G,,9E,,,^Pbb⸮
L0L,$G⸮RMC,,V,,,,\,,,,,N*4D
$GNVTG,,,,,,\,,N*2E
$GN⸮GA,,,,,,0,`0,99.99,5A,.9G,,8*V9,
,7$GNRMC,,V,,,,,,,\,,N*4D
$GNVTG,,,,,,,,,O*2E
$GNGG⸮,,,,,,0,00,y9.99,,G,,99G,,9*V
,6,A$GNRMC,,V,,\,,,,,,,N*4D
$GNVTG,,,,,,,,,N*2E
DGNGGA,,,,,,`,00,99.99,,S,,.2,,.9G1
1NV$GNRMC,,V,,,,\,,,,,N*4D
DGNVTG,,,,,,,,,N*2E
$G⸮GGA,,,,,,0,`0,99.99,5A,99
1,99G*,
,7$GNRMC,,V,,,,,,,,,,⸮*4D
$GNVTG,,,,,,,,,N*2⸮
$GNGGA,,,,,,0,00,99.y9,,
,,9.$,,)⸮⸮⸮⸮R5$0G*L7$GNRMC,,V,,,,,,,,,,N*4⸮
$GNVTG,,,\,,,,,N*2E
DGNGGA,,,,,\0,00,99.99,,⸮,,92,,99
,
1
,$GNRLC,,V,,,,,,\,,,N*4D
$G⸮VTG,,,,,,,,\N*2E
$GNGG⸮,,,,,,0,00,99.99,6A,9,
A,,)⸮⸮*
V
,
,A$GNRMC\,V,,,,,,,,\,N*4D
$GNV⸮G,,,,,,,,,NZ2E
$GNGGA,\,,,,0,00,9y.99,
A,,9G,,,9$,L0L*$GNRMC,,V,,.,,,,,,,N*4D
$GNVTG,,,,\,,,,N*2E
$GNGGA,,,,,,`,00,99.99,,N,,9.$,,.9S91
,$G⸮RMC,,V,,,,\,,,,,N*4D
DGNVTG,,,,,,\,,N*2E
$GNGGA,,,,,,0,00,99.99,
1,99G,9,$,
,
Im not sure, if its about baud rate, gps is broken or its not getting any signal ?
