Bluetooth BLE5.0 Data Transmission Module implements data transmission through the UART port and remote Bluetooth low energy. After the module is powered on, it will enter the communication mode or configuration mode according to the level value of the ModeSW pin.
In the communication mode, the module is the slave Bluetooth device, and the remote Bluetooth as the master device can discover and connect to the module and perform the data transmission task.
In the configuration mode, the user can configure the parameters of the module, such as the device name, baud rate, and power management mode. In this state, the module cannot be found/connected and is always awake.
With automatic sleep (low power) mode enabled, the module can achieve significantly lower power consumption while ensuring reliable communications. However, after the function is enabled, the wake-up pin is active. When the external processor sends data to the module, the wake-up and hold pin of the module must be set high in advance, and the module no longer enters hibernation. When the data is sent, reset it. Back to low level.
If the application is insensitive to power consumption, the auto-sleep function can be disabled. At this time, the module is in full-speed operation and the power consumption is relatively high. However, when the user sends data to the module, there is no need to control the wake-up and hold.

Note 1:
This refers to the data transfer rate between two modules, which is related to the connection parameters.
If use different mobile phones and modules to transmit data, the speed may different.
Note 2:
This value varies with the connection parameters, and different master devices may have different values, such as using different mobile phone connection module, the power consumption of the module is different.