when I run this code, there is an error saying that "NUM_COM" was not declared in this scope, I don't know how can I fix this error.

[bibis2]

when I run this code, there is an error saying that "NUM_COM" was not declared in this scope, I don't know how can I fix this error.
The error is in line 186, in for loop: for(int num= 0; num < NUM_COM ; num++).

Originally posted by @TairongZhu in AlphaLima/ESP32-Serial-Bridge#15