educatenxt enter the name “sound graphing” for your experiment. real-time data logging click the...
TRANSCRIPT
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Enter the name
“Sound Graphing”
for your experiment.
Real-time Data Logging
Click the Switch to NXT Data Logging icon in the top-left corner of the NXT-G screen.
Then press Go >>.
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Real-time Data Logging
Select Sound Sensor.
Click the green Play button.
Plug in a Sound sensor to Port 1 on the NXT Brick.
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Real-time Data Logging
Y axis
dB (decibels)
x-axis
Time (sec)
Actual Data readings
Data-logging Tools
Graph should look something like this.
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Data-logging Tools
Zoom
Move the graph around.
Predict
Analyze statistics and so forth.
Write on the graph.
Screen shot
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Data Logging the EduBot
Start a new experiment.
Select Rotation Sensor.
Select Port B.
The motion of pushing the EduBot can be graphed.
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Data Logging the EduBotGraph the movement of the EduBot as it
is being pushed.
Forward – ConstantBackward – ConstantAccelerate and then
decelerate.
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Use the Scaling Mode to resize your graph.
Some things to try . . .
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Some things to try . . .
Graph two motors at once.
Then try pushing the robot in a curve turn.
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Some things to try . . .The Prediction Tool
Create your own graph and try to copy the motion by pushing the EduBot.
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Logging the Line Follow
What does a Light sensor see when the EduBot follows the line?
To find out, add a Datalog block to a Line Follow program.
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Logging the Line Follow
Single Sensor Line Follow program with Datalog block at the start
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Configuration Panel for Line Follow Datalog block
Logging the Line FollowNote: Light Generated box checked
Download the program to the EduBot and run (Orange button x4).
Once run for at least seven seconds, upload the data from the Data Logging screen.
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Show the Teacher!Try data logging as part of a program:• Line Following with two Light sensors
• The Ultrasonic sensor, attached to the EduBot, approaching a wall
• The Sound sensor, attached to the EduBot, approaching a constant sound source
• A Light sensor, attached to the EduBot, approaching (and facing) a constant light source
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