u-blox NINA-B1 Series Getting Started page 8

NINA-B1 series - Getting Started
Figure 3: Operational modes
In data mode, the data transmitted on the UART to the module will be transmitted (and broadcasted for all
connections), over air, to all wireless connections. Data received from the wireless connections may be
interleaved upon reception and it may be difficult or impossible to figure out from which remote device the data
is received. This "multipoint strategy" is called as Wireless Multidrop. It is suitable mainly for master/slave polled
protocols such as Modbus and point-to-point communication.
Figure 4: Data mode
The extended data mode is a simple protocol for the UART, which enables transmission of data to one specific
remote device and also informs the remote device from where the data is received. It is also possible to execute
AT commands as part of the extended data mode protocol. Hence, it is not necessary to enter the command
mode from the extended data mode.
UBX-16009942 - R04 Configuration
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