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CheezStix! EE 396 Micromouse Spring 2007 Preliminary Design Review
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Members Toy Lim – Project Manager Kyle Montpas – Software Leader Tyson Kikugawa – Hardware Leader
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Overview Design and build an autonomous robotic mouse to find its way to the center of a maze as fast as possible
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System Block Diagram Rabbit µP RCM 2020 Drive H-Bridge Driver IC BipolarMotors Sense Top-DownSensors SideSensors ADC ‘04 Power LiPoBatteries 5.1V DC-DC Converter Li+Charger FT232 PC USBRS232RS232Emulator Dynamic C ProgrammingCable ACAdapter CheezStix! µMouse 4.096V V REF
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Sensors Top-down Sensors Side Sensors A/D Converter Testing to determine implementation Placement Coding with Movement
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Top-Down Sensor QRD1114 Reflective Object Sensor
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Possible Placement Two sensors on each side One on the front and back Testing to determine physical geometry to allow turning without losing orientation
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Side Sensor Sharp Distance Sensor (GP2Y0A21YK)
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A/D Converter Sensor output – analog (voltage), depending on distance Rabbit reads in digital Sensor --/--> Rabbit
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Possible Placement Two sensors in front and back of mouse Angled to account for the distance limits Can determine distance after A/D conversion
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To Do List Test Motor Torque with Prototype structure Complete acquisition of parts Design PCBs Complete final structure Develop code Test and Debug
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Expected Problems Time! TIME!!! Developing/Fabrication of structure Programming/Debugging USB Charging too slow? Motor torque Sensors – use and implementation
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Revised Schedule March 4 - 10 March 11 - 17 March 18 - 24 March 25 - 31 April 1 - 7 April 8 - 14 April 15 - 21 April 22 - 28 Order Parts Design Circuits Order PCBs Make Final Structure Construct Mouse Program Debug/ Fine Tune
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Deliverable Goals Have a working mouse Be able to find the center of the maze Compete in Mini-Competition – May 5
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Questions? http://cheezstix.homeip.net
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