How to Augment Models using Beacons?

Hi I want to augment a model when I go near within the range of a beacon.I dont know how to get data from a Beacon or BLE device.In Unity is there something to get data from BLE device?

 

Yes, but you will need to purchase a plugin from the asset store. This is the best one: https://assetstore.unity.com/packages/tools/network/bluetooth-le-for-ios-tvos-and-android-26661

 

I have bought a plugin from asset store.From beacons I am getting the RSSI(strength).I am using only a single beacon.I could pop up a message or model when inside the range.

1)How to show the direction from device to where the beacon is situated?Should I use triangulation method(Deep knowledge in maths required?)?How to achieve it?

2)Is there any alternate method other than using beacons.