As per shown here https://wiki.aprbrother.com/en/User_Guide_For_AB_BLE_Gateway_V4.html
Advertising type: 00
Mac addr: 12 3B 6A 1B 5A A3
Rssi: C4
iBeacon raw advertising data
Standard ble flags: 02 01 06
The following bytes are the iBeacon data, but II don’t know in which way the are formatted,a nd you don’s specify it anywhere on your site.
03 03 F5 FE 14 FF D2 00 01 E5 73 38 E6 D8 54 58 10 75 82 83 BF 31 54 02 40
Your Android app decodes it into UUID, major, minor, and distance. But I want to build my own app. How is this done?