1. Team 20: Jordan Wagner

2.  iPhone controlled marble maze game  Rotation of the phone is translated into rotation of the board  Stepper motor connected to each knob on the board to control the x and y axis  Data sent wirelessly and received with Raspberry Pi

4.  Stepper motors are connected through drivers via two digital output ports each plus one for both enables (five total)  Raspberry Pi is communicated with through UART, with one TX and one RX line  Triple axis accelerometer uses three analog input ports for the axis readings and four digital output ports for enabling and controlling the device

6.  Each axis is a separate analog output  Four digital inputs for mode selection and device control  Used to determine orientation of game board and as feedback for motors Image source: http://www.kerrywong.com/blog/wp-content/uploads/2010/09/lis3lv02dlaxis.jpg

7.  Each motor has a driver IC, which interfaces to the microcontroller  Each driver will have a direction and step digital output, and both will have an enable signal

8. Image source: http://www.amazon.com/Brio-34000-BRIO-Labyrinth/dp/B0001WGISK/ref=sr_1_1?ie=UTF8&qid=1360720104&sr=8- 1&keywords=brio+labyrinth