Plink-O-Rama Dave Hoffman Ben Breen. Presentation Outline 1. A Review of our Proposal −Compare /...
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Transcript of Plink-O-Rama Dave Hoffman Ben Breen. Presentation Outline 1. A Review of our Proposal −Compare /...
![Page 1: Plink-O-Rama Dave Hoffman Ben Breen. Presentation Outline 1. A Review of our Proposal −Compare / Contrast: What did we set out to do? What have we.](https://reader036.fdocuments.net/reader036/viewer/2022070307/551aca89550346b2288b58b9/html5/thumbnails/1.jpg)
Plink-O-Rama
Dave Hoffman
Ben Breen
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Presentation Outline
1. A Review of our Proposal− Compare / Contrast:
What did we set out to do? What have we done?
2. Technical Implementation− Core Modules; How they function.− Setbacks and Failures− Contingency Plans
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Presentation Outline
3. Demonstration− Driving the Stepper Motor− Plink-O-Rama: Let’s Play a Game
4. Conclusion− Suggested Improvements − Acknowledgements− Question Period
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A Review of our Proposal
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Survey Says: Students Are Stressed
Short breaks between periods of reading are proven to create a more productive study period.
Students will often take study breaks regardless of the situation. By structuring these breaks, the student would be fully aware of passing time.
What could solve this issue?
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Our Finished Product
Plink-O-Rama is an electronic game designed to:− provide amusement− reduce stress − and increase productivity.
Plink-O-Rama is Refreshing!
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“This game would make a great studybreak”
- Brian Paquette
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Technical Implementation
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Technical Overview
I/O Computer
Basket LED’s
Sensor Circuitry
Stepper Motor
Score Displays
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I/O Computer
Technical Overview
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I/O Computer
Initial Design: PIC16C74B Microprocessor
Processor was to control:• Basket values. • Detect scores on the pins.• Display / keep track of scores.
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I/O Computer
Setbacks: Processor damaged during
development.
Basis for Setback: Attributed to the PC power supply.
Adjustments Design changed to utilize Parallel Port
to replace function of microprocessor.
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I/O Computer
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I/O Computer
Adjustments:− I/O limitations require new
components.
− Additional Techniques required to reduce pin usage. Basket values controlled by external
logic gates. Current player indicator controlled by
74LS04 chip.
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Technical Overview
Sensor Circuitry
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Sensor Circuitry
Initial Design:
Small effective circuits using pull-up resistors designed to minimize noise on input lines to microprocessor.
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Sensor Circuitry
Setbacks: Sensors incompatible with parallel
port.
Basis for Setback: Attributed to the PC power supply.
Adjustments Design changed to negative logic
based sensors effectively debounced.
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Basket LED’s
Technical Overview
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Basket LED’s
Initial Design:
Each basket controlled through the use of the microprocessor.
Setbacks: Number of pins available reduced in
switch to parallel port.
Basis for Setback: Attributed to the PC power supply.
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Adjustments: Sensors are driven using external
logic to manipulate all bins based off a single bin.
Basket LED’s
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Technical Overview
Score Displays
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Score Displays
Initial Design:
Each display driven through a complex network of logic chips.
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Score Displays
Completed Initial Design
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Score Displays
Setbacks: Two separate units needed to be
placed on board. Space unavailable.
Basis for Setback: Difficult to debug, other methods of
driving displays found.
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Score Displays
Adjustments: Employs the 74LS47, BCD to Seven
Segment Decoder IC.
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Adjustments:
Score Displays
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Stepper Motor
Technical Overview
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Stepper Motor
Evolution of Motors:
Floppy Drive Motor
Spare PartsMotor
Digi-KeyMotor
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Stepper Motor
Initial Design: Two bit counter used to drive logic
into a series of transistors that in turn drive the stepper motor.
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Setbacks: Damaged transistors. Current requirements too high for
slightly damaged parallel port.
Basis for Setback: Did not order proper transistors. Attributed to the PC power supply.
Stepper Motor
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Final Design: The ULN2003A, high current (500mA)
Darlington transistor array was used as the central component in driving a single stepper motor.
Stepper Motor
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Demonstration
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Demonstration
Stepper Motor
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Demonstration
The Physical Components:
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Demonstration
Plink-O-Rama: Features:
Two player board game. Turn-based. Each game goes to 15. Three levels of difficulty:
1st Level: Static Basket Values. 2nd Level: Basket Values change
each turn. 3rd Level: Chaos Mode.TM
Basket Values change randomly.
Winning Animations Winning Histories
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Demonstration
Plink-O-Rama
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Conclusion
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Improvements to Prototype:
External Component Independence:− Integrated Central Processing Unit − Embedded Power Supply
Wiring / Eliminating Protoboards
Additional Software Features:− Multiple Game Modes− Implemented Pause after
long periods of play.
Conclusion
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Acknowledgements:
We would like to express our sincere gratitude to:
- Frank Comeau- Jim Holmes- Carl Adams- St F.X. Machine Shop:
- Werner Schnepf- Steve MacDonald
Conclusion
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Questions / Comments