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4 Basic operation
4.1 Recommended circuit diagram
5 Function Description
5.1 Role description
The module supports three roles: master, slave, and observer.
The host supports connecting to other Bluetooth products of our company. When the module is used as a master, up
to 2 slaves can be connected. Support transparent advertising and format transmission. auto connection.
The module slave can connect with other models of our company's Bluetooth products to support transparent
transmission.
The observer is only used to print the advertising information of the BLE devices around the module and cannot be
connected.
5.1.1 Master
1. AT+ROLE=1 select master mode
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