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How I can connect all devices around 20metre range?

For Android app... How the data store in database around 20 metre range without knowing any number also... Please suggest

android
21st May 2020, 9:21 PM
Thanki Ruchit
Thanki Ruchit - avatar
2 Answers
+ 1
Thanks for discuss it
26th May 2020, 9:24 AM
Thanki Ruchit
Thanki Ruchit - avatar
0
https://searchmobilecomputing.techtarget.com/definition/Near-Field-Communication This may help
26th May 2020, 9:21 AM
Da2
Da2 - avatar

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