Example Projects: Discover Components

These example projects feature different components of App Inventor. Use these tutorials to introduce students to concepts and components through examples.

Where is North?	Compass App uses Orientation Sensor and and Image Sprite to create a simple compass. Part II incorporates the Location Sensor to give real-time latitude, longitude and heading. R. Morelli, Trinity College	Tutorial
American Flag Drawing App	Create an app for the user to interactively draw an American flag on the screen.Uses: Buttons, Canvas, Screen Arrangements, Global variables, and Timers (Clock) F. Turback, Wellesley College	Tutorial with Example App and Blocks
The Memory Game	A simple memorization game that teaches how to use lists and loops. R. Morelli, Trinity College	Tutorial
Using GPS Mapping the Campus	Use the location sensor to track your movements on a map. R. Morelli, Trinity College	Tutorial
Phone Raffle Texting Raffle	Randomly select a participant's phone number off a list and call (or text) that phone number. Illustrates PhoneCall and Texting components and demonstrates effective use of lists. R. Morelli, Trinity College	Tutorial
One-Minute Timer	This short tutorial introduces the Clock component for building a sixty-second timer app. R. Morelli, Trinity College	Tutorial
Key Exchange (Secure communication)	This elegant app uses the Diffie-Hellman Key Exchange method that allows two parties that have no prior knowledge of each other to jointly establish a shared key for secure communication. See also: Color Crypto using Diffie-HellmanR. Morelli, Trinity College	Example App
Color Cipher	This demo illustrates a simple cipher system that uses color as keys. R. Morelli, Trinity College	Example App
Summation App	This simple calculation app uses basic conditionals and math components. Lyn Turbak, Wellesley College	Example App
CoinFlip	Flip a Coin introduces the concepts of abstraction and randomization of numbers. It can be extended to many different topics by using the template. Ralph Morelli, Trinity College	Example App