Shopping cart using variables to calculate selected item amount, and total costs using variables. Project also includes a thumbnail gallery

I simulated a 10 second timer that counts down from 10 to 0. This is very simple to do. All you need to do is change the text property of the text value with a custom value and include a delay of 1 second. Then add a callback for the next number with a delay of 1 second. Repeat this until you get to the number 0. There is no need to use variables to simulate a timer. If you are looking for someone to help you with your prototype, we are available for hire at: http://protonerds.com/

This is an interactive dial pad, created with proto.io. Development & original idea: https://spaces.proto.io/akisioannou Graphic design: George Prentzas

Here's a demo showing a basic color picker using a container with 4 states for both the colored star and the color swatches.

iPad mobile tablet prototype using hotspots, carousel and tab bar for navigation.

Red light / Green light game from Squid Game