Learning Math/CS/Engineering Design with Robotics
LArduino Ultrasonic 5: Plot Distance vs. Time
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Objective: Learn how to plot distance measurements from an ultrasonic sensor vs. time. Overview: The pre-placed code uses a loop to get distance readings from the ultrasonic sensor at 1-second intervals for 10 seconds. It also keeps track of the time using a variable named "time," and uses the "point" block (from the Drawing section) to draw a red dot on the grid for each pair of (time, distance) values. Run the code, using your hand or a flat object (the flat object works best) to get different distance readings for the sensor. Note that distances above 12 inches will not be displayed, because the grid is set up for a 12x12 display. After you run the code, make the changes suggested in the Problem Statement.
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| Grid Size: S M L | Simple View: | MinView: |
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| Grid: | 12x12 inches | 24x24 inches | 36x36 inches | |
| 72x72 inches | 96x96 inches | 192x192 inches | ||
| 1x1 inches | 2x2 inches | Fraction: | ||
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| Quad: | 1 Quadrant | 4 Quadrants | 1&4 Quadrants | |
| Units: | US Customary | Metric | Ruler: | |
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Modify the pre-placed code so that it plots the distance vs. time measurements at 1/2-second intervals for 10 seconds. |
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Pre-Board Workspace
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Post-Board Workspace
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