how to get speed limit from latitude and longitude using microcontroller

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Hi, I want to design a GPS car tracker with SIM808. Right now I can get GPS data including latitude, longitude, speed, and ... from SIM808. I want to be able to get the legal speed limit for the latitude and longitude of the place using a microcontroller. How can I do this? 

Last Edited: Mon. Oct 11, 2021 - 09:02 PM
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