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This CLI (Command Line Interface) is based mbed-os. Both NNN50 and NQ620 are supported.
BLE CLI Document can be downloaded here .
Note that when evaluate using Windows PC as the host, the Serial driver need to be installed in advance. The instruction is explained in the link below
https://developer.mbed.org/handbook/Windows-serial-configuration
Once installed, a device called 'mbed Serial Port (COM#)' should be recognized in Device Manager, as shown below
Please open the com port at 115200 8n1 as default