I started the process by creating sketches for the display of the application. I started with creating different wireframes with a proper user journey that links each screen to the next.
Main screens:
1) Splash screen (logo)
2) Select your location
3) Selected hub (number of bikes left)
4) Hamburger menu options
5) Scanning code
6) Unlock application
7) Select hub you want to take your bike from
8) Select bike