Specifications

HM-BT4502 V1.0
3/ 43 www.hoperf.com
9.10 Add the Custom Advertisement Content .................................................................... 17
9.11 Customizethe Product Identification ............................................................................ 17
9.12 Tx Power Setting ............................................................................................................. 18
9.13 RSSI Signal Strength Output ........................................................................................ 18
9.14 RTC Setting and Getting ................................................................................................ 19
9.15 Data Delay Setting .......................................................................................................... 20
9.16 Battery Level Setting ....................................................................................................... 20
9.17 AT Instruction List ............................................................................................................ 21
9.18 Advertisement Data Setting........................................................................................... 24
9.19 System Reset and Recovery ........................................................................................ 26
10 BLE Protocol Description (APP Interface) ...................................................................... 27
10.1 Pass-through Data Channel【Service UUID：0xFFE0】 ..................................... 27
10.2 Anti-hijacking Key【Service UUID：0xFFC0】........................................................ 28
10.3 Module Parameter Setting【Service UUID：0xFF90】 ......................................... 31
10.4 OTA Service【Service UUID: 0x5833ff01-9b8b-5191-6142-22a 4536ef123】 37
10.5 Device Information【Service UUID: 0x180A】 ................................................... 37