Using the Carousel default Pattern in Proto.io. I use a few screen interactions to turn it into an Autoscroll Carousel. Design Credits to: https://www.sketchappsources.com/resource/download-3665.html

Going to a screen depending on a picker selection using states, variables and the 'Fire an items event' action

A Sample project used in various official Proto.io tutorial videos. It contains various design patterns commonly found in popular mobile apps.