Specifications

HM-BT4502 V1.0
25/ 43 www.hoperf.com
{
0x00, 0x00, custom device type coding. The default is00 00, which can be set
by AT instruction；
0x00,0x00,0x00,0x00,undefined；
0x00,percentage of module power supply, 2.0V = 0%；
0x00,0x00,undefined；
}
Custom advertisement data: If the advertisement content is customized using
AT instructions, the maximum length is 16 bytes (blue part).The
GAP_ADTYPE_MANUFACTURER_SPECIFIC domain contains the following
contents in the advertisement. The length is 2+n bytes:
{
0x00, 0x00, custom device type coding. The default is00 00,which can be set
by AT instruction；
Data [n], custom advertisement data, n <= 16；
}
Note: The custom advertisement data can be modified by AT instruction and
saved on power failure. When the power is restarted, the final custom
advertisement data will be used. If the custom advertisement data is all 0 (16
bytes), it is considered that the default advertisement content of the system is
used instead of the custom advertisement. In order to avoid excessive power