How to make the data received by the computer automatically send short messages

You can consider what I think is the basic idea:

First of all, necessary programming is indispensable. The warning value must be monitored, and when it is reached,

Trigger SMS sending software (you may need to write your own software, you can learn about Mobile Fetion, which may be helpful to you) to send SMS to the grassroots. This is about the process, but it is still difficult to achieve, and you can also pay the software company to help you.