Specifications

HM-BT4502 V1.0
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Table of Contents
1 Product Overview ........................................................................................................................ 4
2 Module Features ......................................................................................................................... 4
3 Electrical Characteristics ........................................................................................................... 6
4 Module Function Description .................................................................................................... 6
5 Application Schematic ............................................................................................................... 7
6 Module Pins.................................................................................................................................. 8
6.1 Module Pins Distribution ..................................................................................................... 8
6.2 Module Pins Definition ........................................................................................................ 9
7 Module Size................................................................................................................................ 10
8 Serial Port Pass-through Protocol Description ................................................................... 10
9 Serial Port AT Instructions ...................................................................................................... 13
9.1 Set the Connection Interval ............................................................................................. 13
9.2 Get the Module Name ....................................................................................................... 14
9.3 Rename the Module .......................................................................................................... 14
9.4 Get the Baud Rate ............................................................................................................. 14
9.5 Set the Baud Rate ............................................................................................................. 15
9.6 Get the Module MAC Address ........................................................................................ 15
9.7 Set the Module MAC Address ......................................................................................... 16
9.8 Module Reset ...................................................................................................................... 16
9.9 Set the Advertisement Period ......................................................................................... 16