Creating slidbar and update data using node MCU

I wanted to use slide bar option in client application . using slide bar i could able to change values 0-100.0 . if i presss update data should get updated, Like shown in below project.


spycatcher2k: Hi - please post your Arduino code.

Or not. Have you read this person's posts? Not a clue what the hell he/she is doing. Something like 150 different projects over the years, and not a clue how to do any of them.