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GPS Interfacing With PIC16F877A microcontroller

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vasanthkumar.M

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Hello Friends,,,i am using GPS in my project to find the location...
what i find difficult is to convert the received data of latitude and longitude to address of that locattion..
Is there any formula or anyother way to convert the latitude&longitude data to address...
I am PIC16F877A microcontroller...with hitech c compiler and GPS module as Garmin GPS with 4800 baud rate...help me to solve this friends!!!!!!!!!!!
 

Hi,

It's not clear to me what you mean with "address".

You get the two values:
* 48.8583701
* 2.2944813,17

Now you may use thelse values to look on a globe to find where it is
Or an atlas.

Nowadays one rather uses an electronic map like Google maps:

https://www.google.com/maps/@48.8583701,2.2944813,17z

But I doubt you will get back values like: country, city, postal code, street, number.
( But for sure it is possible, if not now, then maybe in some years)

Klaus
 

What you are talking about us called Reverse Geocoding and there are several services (e.g. Google) that offer it over the Internet as a free or commercial service (depending on how often it is used).
However trying to do this without an internet connection is next to impossible, especially with a small device such as the PIC16F877A which has an 8K instruction space and only 368 bytes of RAM, as you would need to be able to store the lookup-table to convert the latitude and longitude into a text reference, and that could be MB in size for even a small geographic area.
Susan
 

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