problem with GPS neo m8n

Projects Networking, Protocols, and Devices
1

hello everyone
at first, i want to say i'm not a native speaker english, so, sorry for my bad English( my English grade at school is not good)
i had a problem with TinyGPS++ and module gps neo m8n
i haven't change any setting in module by u-center, because i don't know how to use or change properly

if i hook the module with my pc by my uart-usb(sp2102) and use u-center, everything works well

if i upload example code(full device) in tinyGPS++ library, nothing work, this is what showing in monitor

FullExample.ino
An extensive example of many interesting TinyGPS++ features
Testing TinyGPS++ library v. 0.92
by Mikal Hart

Sats HDOP Latitude Longitude Fix Date Time Date Alt Course Speed Card Distance Course Card Chars Sentences Checksum
(deg) (deg) Age Age (m) --- from GPS ---- ---- to London ---- RX RX Fail

**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 209 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 988 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 1732 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 2476 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 3347 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 4193 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 5047 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 5894 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 6764 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 7616 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 8448 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 9194 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 9940 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 10686 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 11516 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 12378 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 13221 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 14083 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 14937 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 15809 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 16649 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 17414 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 18158 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 18902 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 19742 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 20578 0 2
**** **** ********** *********** **** ********** ******** **** ****** ****** ***** *** ******** ****** *** 21443 0 2

so, can anybody help me, thank you very much

2

nothing work, this is what showing in monitor

So, clearly something does work. The number of characters that were read from the GPS keeps increasing. What is being read is not complete or comprehensible. But that does not mean that nothing works.

i haven't change any setting in module by u-center, because i don't know how to use or change properly

Then why did you buy that module?

3

oh, my mean is arduino can't receive anything, like there is problem with wiring, but i check it very carefully
i buy this module so i can learn it physically, it's much easy to me than learning with only code, and i know basic information about it, not advance
Thanks

4

The baud rate of data sent by the GPS module must match the baud rate you have set for receive in the Arduino.

Make sure you can print out some correct NMEA sentences before trying to use TinyGPS. Try this test program, modifying it appropriately.

#include <SoftwareSerial.h>

#include <TinyGPS.h>

/* This sample code tests the connection to the GPS
   It requires the use of SoftwareSerial, and assumes that you have a
   4800-baud serial GPS device hooked up on pins 4(rx) and 3(tx).
*/

TinyGPS gps; 
SoftwareSerial ss(4, 3);

void setup()
{
  Serial.begin(115200);  //must match serial monitor setting
 
  ss.begin(4800);  //must match GPS setting
}

void loop()
{
    while (ss.available())
      Serial.print(ss.read());
}
5

jremington:
The baud rate of data sent by the GPS module must match the baud rate you have set for receive in the Arduino.

Make sure you can print out some correct NMEA sentences before trying to use TinyGPS. Try this test program, modifying it appropriately.

#include <SoftwareSerial.h>

#include <TinyGPS.h>

/* This sample code tests the connection to the GPS
  It requires the use of SoftwareSerial, and assumes that you have a
  4800-baud serial GPS device hooked up on pins 4(rx) and 3(tx).
*/

TinyGPS gps;
SoftwareSerial ss(4, 3);

void setup()
{
  Serial.begin(115200);  //must match serial monitor setting

ss.begin(4800);  //must match GPS setting
}

void loop()
{
    while (ss.available())
      Serial.print(ss.read());
}

i have test it with Serial monitor in arduino IDE, perfect, the baudrate is 9600, and i have change the code properly(only change baudrate+serial port)
and i don't using software Serial, because i'm using arduino mega, connect with GPS by Serial1

6

Then the GPS doesn't have a satellite fix.

7

jremington:
Then the GPS doesn't have a satellite fix.

sorry i went out for a while
the GPS have 3d FIX, i guarantee, becuse the u-center says it have 3d fix and 14 satellites