Specifications

HM-BT4502 V1.0
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10.4 OTA Service 【 Service UUID:
0x5833ff01-9b8b-5191-6142-22a 4536ef123】
Eigenvalue UUID
Executable
Operation
Bytes
Default
Remark
0x5833ff02-9b8b-5191-6142-22a
4536ef123
Write
20
NULL
Firmware
0x5833ff03-9b8b-5191-6142-22a
4536ef123
Notify
20
NULL
Response
Table 6. OTA Service
10.5 Device Information
【Service UUID: 0x180A】
Eigenvalue UUID
Executable
Operation
Bytes
Default
Remark
2A23 (handle:0x0003)
Read
8
xxxxxx0000xxxxxx
(Hex)
System ID,
XXXXXXXXXXXXX is the
physical address of the
module chip, low bytes
are in front
2A26 (handle:0x0005)
Read
7
v2.32u (ASCII)
Module Software Version
No.
Table 7. Device Information Service