From 513e4b9dc27592a46291326c3e58f2f95bfc7859 Mon Sep 17 00:00:00 2001
From: Zachtek <30804618+HarrydeBug@users.noreply.github.com>
Date: Tue, 12 Dec 2017 23:13:34 +0100
Subject: [PATCH] A Pass-through software that makes it possible to comunicate
 diretly with the GPS module

Use this software if you need to connect directly to the GPS module for example from the u-center software.
This software does NOT program the GPS module to output RF so remember to restore the original firmware again after you are done.
---
 GPSPassthrough/GPSPassthrough.ino | 51 +++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 GPSPassthrough/GPSPassthrough.ino

diff --git a/GPSPassthrough/GPSPassthrough.ino b/GPSPassthrough/GPSPassthrough.ino
new file mode 100644
index 0000000..8069d00
--- /dev/null
+++ b/GPSPassthrough/GPSPassthrough.ino
@@ -0,0 +1,51 @@
+/*Software for Zachtek "GPS Referenced RF Generator" 
+   
+   Arduino software that just passes serial data between the Arduino Serial port and the Ublox Neo-6 onboard GPS module.
+   This can be useful in trouble shooting scenarias, expriments etc but the main use would be to be able to controll the GPS module from the PC based U-Center software.
+   Arduino pin A0 is output - Voltage Regulator Enable
+           pin 2 and 3 is Sofware serial port to GPS module
+           pin 4 is output  - connected to the IDC connector
+           pin 5 is output  - Yellow LED indicator
+  
+   For Arduino Pro Mini 8MHz
+*/
+
+
+#include <SoftwareSerial.h>
+#include <MicroNMEA.h>
+#define LEDIndicator1 5  //LED to indicator for GPS Lock on pin A3
+#define LDO_Enable A3    //GPS Voltage regulator Enable on pin A0
+SoftwareSerial GPSSerial(2, 3); // RX, TX
+const char softwareversion[] = "0.1" ; //Version of this program, sent to serialport at startup
+
+char NMEAbuffer[500];
+int  bufferIndex = 0; 
+unsigned long LastCheck, LastConfig;
+MicroNMEA nmea(NMEAbuffer, sizeof(NMEAbuffer));
+Stream& console = Serial;
+boolean GPSOK;
+
+ 
+void setup() {
+  GPSSerial.begin(9600);
+  Serial.begin (9600);
+  delay(100);//Wait for Serialport to be initialized properly
+ 
+   pinMode(LDO_Enable, OUTPUT); // Set Voltage Regulator Enable pin as output.
+   digitalWrite(LDO_Enable, HIGH); //Turn on 3.1V Power supply for the Ublox GPS module
+
+   pinMode(LEDIndicator1, OUTPUT); // Set GPS Lock  LED pin as output.
+   digitalWrite(LEDIndicator1, LOW); //Turn off Lock LED 
+   delay(250);//Wait for GPSmodule to complete it's power on.
+}
+
+void loop() {
+ 
+  if (GPSSerial.available()) // If GPS data is available
+    Serial.write(GPSSerial.read()); // Read it and print to SerialMonitor
+  if (Serial.available()) // If SerialMonitor data is available
+    GPSSerial.write(Serial.read()); // Read it and send to GPS
+}
+
+
+