What mobile phone are you using?
Really cool that you have done this :)
I am super happy that you gave it a try and in my opinion this is just awesome!
I am impressed by your English and the well planed structure of your video man. This is really #awesomediycontent :)
Pretty cool that you show the circuit plan, explained how it is developed and how the whole stuff is working.
I have not a single negative feedback!
Just a tipp if you don't know it already: share your steemit article within the promotion channel if the official dtube discord. That increases the chance to get a upvote of 
RE: Reading Buttons with a Microcontroller