Team 20: Jordan Wagner

 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

 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

 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:

 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

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