130-28176 Parallax Inc, 130-28176 Datasheet - Page 98

• Manufacturer Part Number: 130-28176
• Description: KIT PARTS PROCESS CONTROL
• Manufacturer: Parallax Inc

Specifications of 130-28176

• Accessory Type: Education Kit
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Board of Education Full Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

This StampPlot macro gives the ability to make a plot of the voltage readings. See Figure
4-6 for an example plot. The individual points on the graph are made by typing a
distance in the mm box, then clicking the Plot button. The current VCE reading will be
plotted vs the distance entered. As points are input in this manner, the macro connects
each point with a straight line.
Making a Plot
Figure 4-5 Positioning of Switch and White Paper
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Use a folded piece of white paper or a white 3 x 5 card for the reflective object.
For maximum reflection, fold it so that the surface facing the detector is as
vertical as possible.
Start at 50 mm (5 cm) and move the paper towards the switch. Watch the VCE
reading to see how the voltage drops as the paper moves closer to the switch.
Start at 50 mm (5 cm) and move the paper towards the switch. Watch the VCE
box for slight drop, maybe 0.1 V, in voltage, or just move 5 mm closer.
Enter the distance in the ‘mm’ box.
Click Plot to plot your reading.
Figure 4-4
Reflection Ruler
Duplicate for cutting
out can be found in
Appendix A.