=example=

=example=

   This example USES nb-iot to communicate with PC.Send the AT command through PC upper computer to check whether it is connected with nb-iot module,  

   This example USES nb-iot to communicate with PC.Send the AT command through PC upper computer to check whether it is connected with nb-iot module,  

and detect the strength of the signal.

and detect the strength of the signal.

*步骤一：

*Step one:

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   （1）硬件（Arduino 拓展板、NB-IOT）连接电脑

   （1）Hardware (Arduino expansion board, nb-iot) connected to the computer.

   （2）在我的电脑查看设备管理器（在我电脑上显示的是管理），点击“设备管理器”、点击“端口”查找对应的COM口，步骤如下：

   （2）Check the device manager on my computer (which shows management on my computer), click "device manager", click "port" to find the corresponding

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*步骤二：

*Step two：

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