Creating an app for monitoring a micro-powerplant for a school project

Me and my class are studying computer and electronics, but as it seems nobody in my class has any experience with programming/coding, we are having a bit of trouble developing this app for android/iPhone for monitoring a micro powerplant that we have built.

We are building this to potentially earn some cash from selling it to schools, so it's kinda important to us. This monitoring app is just an idea that we have come up with.

So I'm simply asking for help. Does anybody have any experience with this? Any good way to get started?