User's Manual

MB5601L Module User's manual

Hua shu Communication (Shenzhen) Company

6. AT command function definition

6.1

Working Mode

The Bluetooth module has two working modes :

Master Mode and Slave Mode

Note: The default factory working mode of the module is the slave device mode, which can be

searched by the mobile phone and the master device mode module and connect.

6.1.1

master mode

Bluetooth module in master mode:

1. It can be connected with a slave device module. In this mode, you can search and connect to the

surrounding slave devices.

2. You can set the MAC address of the slave device, and the master device module will automatically search for the MAC

address whenit is powered on .address of the slave device and connect.

3. Support to open the disconnection and reconnection function. When the working environment of the

module returns to normal, the master device will automatically search for the slave device that has just

been disconnected.

6.1.2

slave mode

This mode includes a serial port transceiver service , the user can pass UUIDFind it, there are two channels in it,

respectivelyare read (

) and write (

). Users can operate these two channels for data transmission.

If the user uses the Bluetooth master device to connect with the slave device, the user does not need to pay

attention to the internal protocol, the serial ports of the two devices directlyData can be transparently

communicated.

Module UUIDas follows:

Main service UUID: FF50 (0000FF50-0000-1000-8000-00805F9B34FB)

Transparent data UUID: FF51 (0000FF51-0000-1000-8000-00805F9B34FB)