This app demonstrate accuracy of iBeacons inside of a room and tries to generate heat map using them. Because of iBeacon's proximity error, we have to use some approximation method to increase the precision of our position.

In this demo you can set size of a room and choose one of few approximation methods.

Tested on iBKS105 from accent-systems
transmit interval: 0.1sec
TX power +4dBm

accuration method originally from
https://github.com/alt236/Bluetooth-LE-Library---Android

github: https://github.com/svab-m/ibeacon_heatmap_demo

please share your result in comment below