Interfacing of GPS module (I used LEA-6H 02) using an Arduino UNO (or any other Arduino device) and calculating latitude and longitude to display on application window written in Python.

Step 1: Get a u-blox LEA-6H 02 GPS module, read data sheet specifications, and make module ready to connect to Arduino

• Read the u-blox LEA 6 datasheet carefully and make sure your module is correct

• Most of the modules operate at ~ 2.7 to 3.6v, so make sure you have the proper power source, I used Arduino 3.3v pin

• All the modules support UART communication port, so we will be using it to interface with Arduino

• Modules by default come with micro female sockets which I find hard to connect to Arduino, hence I replaced it with 2.54mm jumper wire female socket (before replacing it make sure that you know which pin does what and make a pin diagram on paper or computer)

• Now this module is ready to connect to Arduino

Step 2: Connect GPS Module with Arduino

Connect Tx and Rx of GPS module with Rx and Tx of Arduino

• Tx of GPS(Green wire in my case) to => Rx of Arduino

• Rx of GPS(Yellow wire in my case) to => Tx of Arduino

• Identify Tx (transmitter) and Rx (receiver) of GPS module and same on Arduino also (I used UNO so it got only 1 UART communication port, Tx on pin0 and Rx on pin1, more specifications on Arduino UNO )

Caution: Make sure that you apply no more than 3.3v (max. 3.6v) to your GPS module and read instruction module carefully

Step 3: Upload Arduino program to read Serial (communication) port

• The code for this project can be found in the GitHub repository

• Link: https://github.com/harshgosar/LEA-6h-GPS-Arduino-Python

• Please do read README.md file

Observe response on the screen

• It will take some time to give the valid response and depends on the signal's strength received by GPS module

• Keep the GPS module in the open surrounding or near to the window

• Install u-center software as given in above README.md file

• Upload Arduino code to Arduino module

• Connect GPS pins to Arduino

• Open the Serial monitor on Arduino IDE and observe the output of GPS module, make sure it's printing worthful output

• Disconnect the Arduino serial port by closing serial monitor and now open u-center software and select the serial port of Arduino

Step 4: Execute the Python code

• Download and configure Python in your local machine

• Download Python code to read GPS data via the serial communication port of your machine

• Connect and power GPS with Arduino

• Identify com port to which Arduino is connected

• Run Python code

• Enter com port details

• Verify lat and long data

EXPANDED TECHNICAL DETAILS

Satellite-to-PC Bridge

This high-performance geolocation system uses the industrial-grade u-blox LEA-6H module to provide precise global positioning to a host computer.

• NMEA Data Stream: The Arduino acts as the "Hardware Intermediary." It fetches $GPRMC and $GPGGA sentences from the u-blox module over 9600 baud Serial and forwards them directly to the PC via USB.
• Python Integration: On the PC side, a Python script (using the pySerial and pynmea2 libraries) parses the coordinates and automatically opens a browser to the corresponding location on Google Maps.

Strategic Precision

• Cold vs. Hot Starts: Explains the u-blox module's ability to maintain satellite ephemeris data in its internal memory for faster re-acquisition of signals when moving under dense foliage or between skyscrapers.