Blying docs explains gps coordinates sending from arduino to my phone, but i want sending gps coordinates from i phone to arduino… is there any gadget or something to do it… my arduino is fixed,stationary, i want to do this, when i am getting closer to my arduino with my phone than trigger my project…
Not positive if this is supported on iPhone, but the widget you are looking for is the GPS Trigger. You set the location of your device (usually by nature of having your phone near it) then as your phone exits or enters the target zone, it “triggers” a virtual pin.
Yes it’s called an Android smartphone and ones with GPS start from around $40.
Pretty sure Blynk’s iOS doesn’t have the phone sensor widgets yet.
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Correct… I was looking for a post about that… and here it is
Sorry @Muhendis80 But as suggested, perhaps pick up an Android phone or tablet for use with Blynk.
I have iphone/ios 
i hope, we will not wait long time for these widgets…