I am extremely new to Arduino and have searched for this on the web but have not found it.
My project has 2 files, a .ino file with the sketch and another .h file with the secrets and configuration parameters, such as reading intervals, credentials to connect to WiFi, etc.
Now I need in runtime to be able to connect to the arduino, either by serial or by any other way to be able to set these parameters.
My question is: How can I change the parameters after compiling the sketch? For example, how can I specify the credentials for the Arduino to connect to the client's WiFi, since each client has different credentials?