add a name to the value.

You will have to explain in more detail.

Do you mean that you receive the data "NAME1 = 8867111" and you want to be able to identify the number part and, if it matches, display the name part?

If so have a look at the examples in Serial Input Basics - simple reliable ways to receive data.

I think the strstr() function will be suitable for checking the content.

...R