Specifications

HM-BT4502 V1.0
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FF98 (handle:
0x0077)
Read/write
Yes
16
Default
advertisement
content (see the
chapter of
Advertisement Data
Setting
)
Set the custom advertisement
data:
The custom advertisement data
length is 0 < n <= 16
FF99 (handle:
0x007A)
write
－
1
None
Reserve
FF9A (handle:
0x007D)
Read/write
-
1
None
Reserve
Table 5. Parameter Setting Service
Module Information Configuration Channel Description:
FF91 is the device name setting channel
Users can access and set the module name by reading and writing operation
in the channel. The name length L must be 0 < L < 17.It is recommended to
end with a terminator (‘\0’）. The default is “Tv2vvv-xxxxxxxx\0”(16 bytes),
“vvvv” is the firmware version, and “xxxxxxxx” is the last four bytes of the MAC
address.