I saw your comment in Sparkfun.com on GPS (http://www.sparkfun.com/products/8975#), and you said to change the baudrate of the GPS i have to send in the command "$PMTK251,38400*27".


May I know what is the program that i have to run first, on the Arduino in order to allow me to send this command succesfully?
I tried sending it while running the following, but it ignored it:

void setup(){
  Serial.begin(57600);
}

void loop(){
  if(Serial.available()){
    Serial.print(Serial.read(), BYTE);
  }
}

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Hi Y,

reading this: http://diydrones.com/profiles/blogs/using-the-5hz-locosys-gps-with...

you have to connect the GPS with a ftdi cable to your pc usb port and use RealTerminal to send it. Note, that untill point 8 of 9 you would not connect it to the arduino.

If you don´t have a ftdi cable and are using the arduino like a way to comunicate with, have a look at the Patrick L post here: http://diydrones.com/profiles/blog/show?id=705844%3ABlogPost%3A1480... its for Ublox GPS but perhaps it could be usefull for you by changing the Baudrate to your gps factory default.

Good luck.

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