My project will combine two servos on opposite ends of a latte. The project will allow for a finger painting like experience with the latte art.

The metaphor for the project is in the stir stick, as it stands for a human finger.

Research will involve a lot of coffee.  I have been looking at how to make the foamy milk that is used in a latte and economical/time efficient methods of making a lot of coffee.  I also need to research pouring techniques.    (I am also entertaining the idea of using a webcam + laser combo instead of the sensors)

The first servo will spin the cup while the top one controls the yaw of a stir stick.  The thermistor  will control the rate of spin while the soft potentiometer will control the upper servo.

For my controller demonstration, I pulled out and reviewed an old project of mine: (starts at 1:18 – arduino and processing working together with a light sensor)

Although the technology has changed significantly, I was able to get everything running again between the arduino and processing.