70009 Parallax Inc, 70009 Datasheet - Page 28

• Manufacturer Part Number: 70009
• Description: BOOK UNDERSTANDING SIGNALS
• Manufacturer: Parallax Inc
• Type: Signal Analysisr

Specifications of 70009

• Style: Book
• Title: Understanding Signals
• Contents: Guide to Generate, View and Measure Wave Forms
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 70009PAR

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Set the Trigger Mode switch back to Normal . Notice the Plot Area never updates,
because the OPTAscope will now only trigger with valid trigger events. Since
the input signal cannot trigger a valid event, there is nothing new to display in
the Plot Area.
Move the trigger voltage back to 2 V, which takes it back into the signal’s range.
You will now see valid trigger events updating the Plot Area.
Experiment a bit: under the Cursors tab, set the Mouse Function switch to Zoom
mode. Try zooming in on one pulse. Click the Reset Plots button to zoom back
out. Change the Horizontal and Vertical dials, and observe the effects in the Plot
Area.