Arduino + Smartphone Google Maps Connection

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i want able have destination set on smartphone (iphone) in google maps eta , directions set up. able have phone connected arduino through bluetooth or similar, when need go left, red led lights up, when need go right, blue led lights up, when go straight green led lights up. not sure if possible. beginner.

thank in advance suggests of comments

the hard part - , out of scope of forum- how commands navigation app.

as have on phone received these commands, can send them arduino or light leds.


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