Respected @rahul.singh1 Sir,
Thanks a lot for the response, in the previous post regarding Multi page user interface.
But I am still facing issues regarding the multipage user interface.
Sir, I am attaching the error message and the code for your kind perusal.
Actually, I want to build a multi page user interface with the first page having auto and manual buttons, clicking on each of which will redirect the user to respective auto and manual control pages. In the manual page, I intend to manually control the intensity using clickable buttons and analogWrite.
Thanks and regards,