Distance control with beacons?

[KleberBastos]

Hello Friends,
I'm new with Beacons and am wanting to develop a work for the College based on that.

The project consists of: Creating an app that when approaching of the product "speaks" about that product, BUT this only happen if I approach a distance X. It is possible to control the distance?
If so, could suggest beacons low cost to develop my project?

Thanks.

[micke]

Hello,

Thanks for posting!

You can use the beacon RSSI (signal strength) value to approximate distance. You can also use the beacon proximity value (immediate, near, far).

Check out this example to get started:

http://evothings.com/doc/examples/ibeacon-scan.html

It displays both proximity and RSSI. You can use either of them of both. Be warned that RSSI may fluctuate heavily and vary depending on the environment (people, obstacles etc). It can help accuracy to sample RSSI over time, use a low pass filter or something.

Best regards, Mikael