new here, raspberry and app

[PBoomhut]

hello,
I want to setup a rasberry Pi as controller.
I want if it's possible to access the switches by an andoïd app.

Which hardware do I need?
I Prefer a guide , how to

If did search some hardware:
3 Haseman Z-Wave DIN Rail 2.5kW Switch 65,99
1 Raspberry Pi 3 B Starter Kit compleet 61,95
0 0
1 Raspberry Pi Z-WAVE 2.0 module EU+ versie RAZBERRY 54,95
2 Verzendkosten 6,95

Greetings, Peter