so basically i want to make or find a programme that allows me to use my phone to control a programme on my pi, and i can also use the same programme on my pi (local on a touchscreen). The programme is to control RGB LED's so i would like some sort of colour mixer, and also to control a cars air ride (if you don't know what that is it doesn't really matter) so i need some up and down buttons on a different page and if it is possible to connect a air pressure sensor to the pi then i would like to be able to read the pressure on the programme as well. I don't know really what to search for and i don't know where to start. I have played with a few ideas but that was just on the pi (local), then i didn't know how i was going to be able to control the programme from my phone. I have the raspberry pi 3.
Thanks and sorry if i'm posting in the wrong place (Noob)