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[Open Source Hardware] XBOX 360 CONTROLLER EXPANSION Jesse Ardonne ET 494 Advisor: Dr. Cris INTRODUCTION Competition for motion controls include: Microsoft Kinect Sony Move Nintendo Wii Many games released are not top selling or rated games By creating an open source platform with hardware and software, gamers with a vast range in technical knowledge can have a resource to review and expand controls to play their favorite games with any motion control they wish. OBJECTIVES Develop an interface between a microcontroller and an Xbox 360 Controller Allow the microcontroller to accept various inputs through different mediums Interpret signals and convert to acceptable outputs for the Xbox 360 Controller CONCEPT Provide the minimal hardware to interface an Xbox 360 controller to a microcontroller. Establish a preconfigured serial connection with a computer. Sensors for control can be Directly connected to the microcontroller Sent over computer via USB Bluetooth PURPOSE Microsoft XNA accomplice If you can program your own games, why can’t you build your own controller? Customizable control scheme for any game Add motion controls Interact more with a game An appealing project for future students DESIGN Design History Hardware Software mBed AD5206 MCP23017 LCD 16x Keypad Xbox 360 controller mBed Computer Wiimote Keyboard/Mouse Integration DESIGN HISTORY Microcontroller NETduino mBed Analog Functions Pulse Width Modulation Digital to Analog (D/A) Digital Potentiometers Transistors 4066 Shift Registers MCP23017 I2C Bus Opportunity to learn new protocol Input Buttons Keypad Helped organize circuit Port Expansion Fast, more efficient, and better organization Digital Button Pushes More libraries and support available Reduces input wires and better organization Setting Output LEDs LCD Screen Provides more ergonomic display HARDWARE mBed AD5206 MCP23017 LCD 16x2 Keypad Xbox 360 Controller MBED Features ARM Cortex M3 core 96MHz clock 512KB flash 64KB RAM Interfaces Ethernet USB CAN SPI I2C Purpose Provide main interface for Sensors Controllers Serial Input AD5206 DIGITAL POTENTIOMETER Features 6 channels with 256 positions each 10 k Ω SPI connection Requires Purpose 3 wires Replace 6 mechanical potentiometers Uses write(address, value) to assign proper values 4066 BILATERAL SWITCH Features Network of 4 digital transistors Wide supply voltage Purpose Replace physical button pushes with an enable pin 4 are needed to cover the 16 buttons MCP23017 Features 16-bit remote bidirectional I/O port High speed I2C interfacing Purpose Expand digital I/O ports 2 chips used All 16 outputs used for buttons 7 inputs used for keypad LCD 16X2 MODULE Features 16 characters wide 2 rows White text on blue background Purpose Display current input Occupies 6 mBed pins KEYPAD 12 BUTTON Features 12 Buttons Matrix circuit Purpose Control Input Occupies 7 pins on MCP23017 XBOX 360 CONTROLLER Features 16 Buttons 6 Analog Functions 3.3V Supply Power Purpose Translate input to Xbox 360 console Traces provided by Ron Alexander of www.Xbox-Scene.com SOFTWARE mBed applications [C++] Wiimote Keyboard/Mouse Integrated Computer Wiimote [C#] Keyboard/Mouse [C++] MBED APPLICATIONS Wiimote Keyboard/Mouse Receives buffer of Wii variables Receives buffer of Keyboard/ Mouse variables Integrated Combines input: Nintendo 64 Playstation 2 Wiimote Keyboard/Mo use COMPUTER Wiimote Program C# Keyboard/ Mouse Program C++ INTEGRATION APPLICATIONS CUSTOMIZE CONTROL SCHEME PROTOTYPE MACRO EXERCISE Replace analog ‘gas pedal’ with speed of spinning bicycle Rotating handle bars for spin Add ergonomic buttons for extra commands GAME ART PROJECT’S FUTURE Compatible Accessories Kinect Sony Move Other CONCLUSION Multiple applications Bright future Appeals to younger students Promotes exercise Works with: Sensors USB Bluetooth REFERENCES www.mBed.org www.netduino.com www.arduino.cc www.analogdevices.com www.xbox-scene.com www.sparkfun.com www.adafruit.com www.microsoft.com www.allegro.cc http://brannigan.emporia.edu/projects/WII/ www.infectionist.com www.digikey.com QUESTIONS
