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Project Status
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Work Completed
• IR communication(Protocol, software, and hardware)
• RF communication(Software and Hardware)• Hardware(PCBs)– Pack– Tagger– Pylon– Central Computer
• Script interpreter
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Work Completed (cont.)
• High level scripting language• Parser/compiler/linker• Remote procedural call• LCD interface• Communication between PC and devices• Ability to flash compiled script
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Work Remaining
• System integration– IR and timer code
• Power circuit• Program Gametypes• Gui for admin and scripting front end
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Problems Encountered
• BDM Programmer
• PCB Problems– Vdd and Vss– Foot prints– Power Circuit– Via sizes
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Test and Evaluation
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Difficulty Testing
• System testing– Incomplete hardware
• Module testing– Pack, Tagger…
• Component testing– ICs and passives
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Demo Milestone
• Protoboard Demo– Tagger– Pack– Central Computer
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Compiler Testing
• Test Bench
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Time and Cost
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Magnitude
• Project was huge– 12 hours per week to start – 25 hours per day at the end
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Past CostsItem Cost
LCD, 10 IR Leds, 4 IR recievers $25.80
RF Parts $12.59
PCBs over the summer $85.00
Breakout Board $12.49
PVC $12.24
USB controller $18.00
IR mounting $88.95
Crystals for IR $13.00
Shipping costs $17.14
TOTAL $285.21
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New CostsItem Cost
Final order from Digikey $112.00
Wires and connectors from pololu.com $141.47
Jameco - IR circuit & various parts $30.62
Final ordered PCBs $121.70
Final order from Mouser $109.21
Final order of LCDs $39.42
RadioShack Purchases $40.78
TOTAL $595.20
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Cost to Others
• Scopes • Power Supplies• Countless parts checked out– Resisters– Caps– Programmer– Soldering Iron
• Breakout Boards
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Safety and Ethical Considerations
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Safety and Ethics
• IR safety• RF safety– Low power
• System failure means little
• Patent research from 364