How to get Parallax PMB-648 GPS module working with Arduino UNO?

[jeffmorris]

How can I get Parallax PMB-648 GPS module to work with Arduino UNO? The GPS module works fine with Basic Stamp 2.

[johnwasser]

How did you connect it?

[jeffmorris]

I followed the tutorial at http://learn.parallax.com/kickstart/28500 but the Serial Monitor displayed "Reading GPS" and won't display the coordinates.

[johnwasser]

I followed the tutorial at http://learn.parallax.com/kickstart/28500 but the Serial Monitor displayed "Reading GPS" and won't display the coordinates.

Try this to see what data, if any, is arriving from the GPS:

Code: [Select]


#include <SoftwareSerial.h>

SoftwareSerial nss(6, 255);            // Yellow wire to pin 6

void setup() {
  Serial.begin(115200);
  nss.begin(4800);
  Serial.println("Reading GPS");
}

void loop() {
  if (nss.available()) {
    Serial.write(nss.read());
  }
}


[jeffmorris]

I still have problems getting Parallax PMB-648 GPS module to work with Arduino UNO. If I try to upload code to Arduino UNO while the GPS module is connected to it, I get messages related to COM ports in use. If I try to compile code that uses TinyGPS library, I get messages saying that TinyGPS and gps are not declared. How can I fix the problems?

[johnwasser]

If I try to compile code that uses TinyGPS library, I get messages saying that TinyGPS and gps are not declared. How can I fix the problems?

Use Google to find the TinyGPS Library.  Download it and install it.

[jeffmorris]

There's a tutorial at http://arduino.cc/playground/Tutorials/GPS and the GPS module have four wires connected to the Arduino UNO. Two wires from the GPS module are connected to Gnd on Arduino UNO. There appear to be a conflict between GPS module and Software Serial. The Serial Monitor is stuck at "Receiving GPS". Any suggestions?

[johnwasser]

Any suggestions?

Try this to see what data, if any, is arriving from the GPS:

Code: [Select]


#include <SoftwareSerial.h>

SoftwareSerial nss(6, 255);            // Yellow wire to pin 6

void setup() {
  Serial.begin(115200);
  nss.begin(4800);
  Serial.println("Reading GPS");
}

void loop() {
  if (nss.available()) {
    Serial.write(nss.read());
  }
}


[jeffmorris]

John, I finally got it working! I found out that I had to disconnect the yellow wire from the Arduino UNO before uploading the code to it and run Serial Monitor, then connect the yellow wire to the Arduino Uno.

[Backy]

Good day!
Is it possible to use Arduino Mega instead of Ardino Uno? To be honest I tried to use Mega with serial pin dig 15 (RX) instead of dig pin 6 in Uno... But Nothing ( I didnt get data . If I use with Uno and pin 6 I can get data.... If somebody knows what is the problem...pls help

[pwesson20]

To connect the Arduino mega to the PMB 648.

https://www.roboticboat.uk/ArduinoMegaGPS.html