73. PathFinder Compass

Soldiers got lost in heavy fog due to broken navigation tools, accidentally entered enemy territory. After escaping, they identified the need for a reliable device to guide them back to camp.

So, build a microcontroller-based device that

• Inputs: Army GPS device provides soldier's current XY coordinates (latitude, longitude) serially over UART at 9600 baud rate.
• System to design: Receives data via UART and calculates distance and direction to a pre-stored camp location.
• Output: Print distance and direction on the serial terminal (e.g., Putty, Arduino IDE)

Predefined Military Camp Coordinates: “X=18.556283, Y=73.955067”

NOTE: Instead of an Army GPS device, we can send a GPS string via the serial terminal (e.g., Putty, Arduino IDE) to avoid hardware complexity. 

Example 

• Soldiers Coordinate String: ” X=18.532525, Y=73.850457”
• The system will calculate the distance and direction to the Predefined Military Camp Coordinates: “X=18.556283, Y=73.955067”
• So, based on the calculation done by the system output will be shown in the given format:

Distance to camp: 11.34 km 
Direction to camp: E

Serial Terminal Output:

You can send the following GPS string manually via the Serial terminal(e.g., Putty, Arduino IDE).  The system should show the distance and direction.

NOTE: For verification, you can refer to the expected output.

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