SPARKLE
Members:
Jefferson Ahn
Langtian Lang
Mogeng Lu
Shang-Wei Wang
System Architecture
TEST CASES
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Power ON/OFF Makes sure rapid power ON/OFF does not introduce
unexpected problems for the next startup
 HOW: Rapidly switch ON/OFF, then stop at a switch on state, see if the
system works expectedly
 Fault-free
Accelerometer Makes sure accelerometer readings are correct
 HOW: Measure travel distance for different altitudes and compare the
readings to find percentage of errors.
 Fault-free
LEDs Makes sure the number of light-up LEDs increases with acceleration
 HOW: Move the accelerometer from slowly to rapidly and observe the
number of light-up LEDs.
 Fault-free
Communication Make sure different components can communicate properly
with each other
 HOW: Test component through AD port and light up LEDs
 Fault-free
METRICS
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Metric of Interest:
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How to measure:
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Place the accelerometer within a handle and wire it
to our breadboard. Measure the speed of simulated
jumps (RPMs) in relation to the voltage output shown
by LEDs.
Units:
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Accelerometer outputs with respect to rotational
speed
Revolutions per Minute (RPM) per Voltage
(measured by LEDs)
Why it’s important:

Because this allows us to understand how sensitive
the accelerometer is and how to use the output it
INITIAL RESULTS
Correlation Between RPM and LEDs Lit
300
250
200
Results
RPM 150
Projections
Log. (Results)
100
50
0
0
1
2
3
4
5
LEDs, 8=Vcc
6
7
8
9