Hello everyone,
I would need help with how the Globalsat EM 506 GPS works.
My issue is that I do not receive any data from pin 4 which corresponds to the TX of the GPS.
In fact, I am not receiving any signal from the GPS.
At most, I notice that the red LED of the GPS is dimly lit with 5V (from the Arduino) but when I connect pin 5 of the GPS (GND) and pin 6 of the GPS (Directive) to the ground of the circuit (which is that of the Arduino), the red LED lights up completely.
From then on, I don't know if the GPS is functional but that it's not in a fixed position or quite simply that it is not functional.
I tried to switch the connection of the RX and TX of the GPS but without success.
Do some of you already worked with this GPS?
If yes? What am I missing? And how do you check that the GPS is still functional?
I have attached a photo of my circuit and copy pasted the code at the end of the post.
Thanks to all of you!
Here's the code that's being used :
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This example uses software serial and the TinyGPS++ library by Mikal Hart
Based on TinyGPSPlus/DeviceExample.ino by Mikal Hart
Modified by acavis
*/
// Choose two Arduino pins to use for software serial
// The GPS Shield uses D2 and D3 by default when in DLINE mode
int RXPin = 2;
int TXPin = 3;
int directive = 7;
// The Skytaq EM-506 GPS module included in the GPS Shield Kit
// uses 4800 baud by default
int GPSBaud = 4800;
// Create a TinyGPS++ object called "gps"
TinyGPSPlus gps;
// Create a software serial port called "gpsSerial"
SoftwareSerial gpsSerial(RXPin, TXPin);
void setup()
{
// Start the Arduino hardware serial port at 9600 baud
Serial.begin(9600);
pinMode(directive, INPUT);
// Start the software serial port at the GPS's default baud
gpsSerial.begin(GPSBaud);
Serial.print(F("Testing TinyGPS++ library v. "));
Serial.println(TinyGPSPlus::libraryVersion());
Serial.println();
}
void loop()
{
/*
int lecture = digitalRead(directive);
Serial.println("Voici le résultat de la pin directive");
Serial.println(lecture);
*/
// This sketch displays information every time a new sentence is correctly encoded.
while (gpsSerial.available() > 0)
if (gps.encode(gpsSerial.read()))
displayInfo();
// If 5000 milliseconds pass and there are no characters coming in
// over the software serial port, show a "No GPS detected" error
if (millis() > 5000 && gps.charsProcessed() < 10)
{
Serial.println(F("No GPS detected"));
while(true);
}
}
void displayInfo()
{
Serial.print(F("Location: "));
if (gps.location.isValid())
{
Serial.print(gps.location.lat(), 6);
Serial.print(F(","));
Serial.print(gps.location.lng(), 6);
}
else
{
Serial.print(F("INVALID"));
}
Serial.print(F(" Date/Time: "));
if (gps.date.isValid())
{
Serial.print(gps.date.month());
Serial.print(F("/"));
Serial.print(gps.date.day());
Serial.print(F("/"));
Serial.print(gps.date.year());
}
else
{
Serial.print(F("INVALID"));
}
Serial.print(F(" "));
if (gps.time.isValid())
{
if (gps.time.hour() < 10) Serial.print(F("0"));
Serial.print(gps.time.hour());
Serial.print(F(":"));
if (gps.time.minute() < 10) Serial.print(F("0"));
Serial.print(gps.time.minute());
Serial.print(F(":"));
if (gps.time.second() < 10) Serial.print(F("0"));
Serial.print(gps.time.second());
Serial.print(F("."));
if (gps.time.centisecond() < 10) Serial.print(F("0"));
Serial.print(gps.time.centisecond());
}
else
{
Serial.print(F("INVALID"));
}
Serial.println();
}
Here's the circuit of the GPS EM 506 to the arduino :
