Added maxWait for isConnected to avoid Serial begin problems

Author: PaulZC

src/SparkFun_Ublox_Arduino_Library.cpp

@@ -960,7 +960,7 @@ void SFE_UBLOX_GPS::sendSerialCommand(ubxPacket outgoingUBX)
 }
 
 //Returns true if I2C device ack's
-boolean SFE_UBLOX_GPS::isConnected()
+boolean SFE_UBLOX_GPS::isConnected(uint16_t maxWait)
 {
   if (commType == COMM_TYPE_I2C)
   {
@@ -975,7 +975,7 @@ boolean SFE_UBLOX_GPS::isConnected()
     packetCfg.len = 0;
     packetCfg.startingSpot = 0;
 
-    return sendCommand(packetCfg);
+    return sendCommand(packetCfg, maxWait);
   }
   return false;
 }

src/SparkFun_Ublox_Arduino_Library.h

@@ -431,7 +431,9 @@ class SFE_UBLOX_GPS
 	//serialPort needs to be perviously initialized to correct baud rate
 	boolean begin(Stream &serialPort); //Returns true if module is detected
 
-	boolean isConnected(); //Returns turn if device answers on _gpsI2Caddress address
+	//Returns true if device answers on _gpsI2Caddress address or via Serial
+	//maxWait is only used for Serial
+	boolean isConnected(uint16_t maxWait = 1100);
 
 	boolean checkUblox();		//Checks module with user selected commType
 	boolean checkUbloxI2C();	//Method for I2C polling of data, passing any new bytes to process()