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lib/SX12XX-LoRa/examples/Hardware_Checks/63_QuectelGPS_Firmware_Checker/63_QuectelGPS_Firmware_Checker.ino

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+/*******************************************************************************************************
+  Programs for Arduino - Copyright of the author Stuart Robinson - 08/09/20
+
+  This program is supplied as is, it is up to the user of the program to decide if the program is
+  suitable for the intended purpose and free from errors.
+*******************************************************************************************************/
+
+/*******************************************************************************************************
+  Program Operation - This program sends a command to a Quectel GPS to return its firmware revision. 
+  The output from the GPS is copied to the Serial Monitor.
+  
+  If you get no data displayed on the serial monitor, the most likely cause is that you have the receive
+  data pin into the Arduino (RX) pin connected incorrectly.
+
+  If the data displayed on the serial terminal appears to be random text with odd symbols its very
+  likely you have the GPS serial baud rate set incorrectly.
+
+  Note that not all pins on all Arduinos will work with software serial, see here;
+
+  https://www.arduino.cc/en/Reference/softwareSerial
+
+  Serial monitor baud rate is set at 115200.
+
+*******************************************************************************************************/
+
+
+#define GPSBAUD 9600          //this is the serial baud rate that will be used for the GPS, a common default
+#define MONITORBAUD 115200    //this is the serial baud rate that will be used for the serial monitor 
+
+#define RXpin A3              //this is the pin that the Arduino will use to receive data from the GPS
+#define TXpin A2              //this is the pin that the Arduino can use to send data (commands) to the GPS - not used
+#define GPSPOWER 4            //When high this pin turns GPS on
+#define LED1 8                //when high this pin turns LED on
+
+#include <SoftwareSerial.h>
+
+SoftwareSerial GPS(RXpin, TXpin);
+
+void loop()
+{
+  while (GPS.available())
+  {
+    Serial.write(GPS.read());
+  }
+}
+
+
+void setup()
+{
+  pinMode(GPSPOWER, OUTPUT);
+  digitalWrite(GPSPOWER, HIGH);
+
+  pinMode(LED1, OUTPUT);
+  digitalWrite(LED1, HIGH);
+  
+  GPS.begin(GPSBAUD);
+  Serial.begin(MONITORBAUD);
+  Serial.println("63_QuectelGPS_Firmware_Checker");
+  delay(2000);
+  GPS.println("$PMTK605*31");
+ 
+}