Data Analysis and Evaluation *ToastMap*

1
Data Analysis and EvaluationToastMap Team 3

• Daniel Lin
• Brian Goldfain
• Regina Chan
• Kenny Huang

2
Status Update

• Toaster was not possible due to power/hardware
  limitations.
• Project redirection
• Column of LEDs that can display an image
• User who shakes head side to side to view image
• Relies on persistence of vision
• Planned extension to place on spinning object
  like fan(negates need to shake head)
• PC connection only to receive new image

3
Status Update (contd)

• No longer need the help of the machine shop
• We switched from Gumstix to Arduino Mega after
  spring break, have had few problems with new
  platform.
• Have designs, internals, software tested and
  ready to put into final package.
• Will begin acceptance testing once final device
  is ready.

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Architecture
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Statechart Diagram
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Experimental Process

• Unit tests for PC and Arduino modules
• Load image
• Convert image
• Display image on LEDs
• Integration tests
• Transfer converted image to Arduino
• Verify image seen on LEDs matches converted image
  displayed on PC

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Test Setup/Metrics

• Setup
• All tests conducted on same Laptop
• PC connected to Arduino via USB at 9600 baud if
  necessary
• Arduino Powered from USB
• Metrics
• Image Conversion time
• Image Transfer time

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Test Results

• No delay visible for user to display image on
  Arduino after image has been transferred.
• Average conversion time 48 ms
• Average transfer time 2.4 sec

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More Test Results/Software
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PC Software
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Questions?