28119 Parallax Inc, 28119 Datasheet - Page 25
28119
Manufacturer Part Number
28119
Description
KIT UNDERSTANDING SIGNALS
Manufacturer
Parallax Inc
Datasheet
1.28119.pdf
(137 pages)
Specifications of 28119
Lead Free Status
Contains lead
Accessory Type
Oscilloscope
Interface Type
USB
For Use With/related Products
BASIC Stamp® 2 and Board of Education
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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If you could watch the OPTAscope Plot Area while you programmed the BASIC Stamp,
you would see the signal change from high (5 V) to low (0 V). Now you can see that the
oscilloscope displays a low (0 V) as a line starting right at the blue arrow to the left.
Since the BASIC Stamp is not changing the voltage level on this I/O pin during the
program, you see a flat line. The next activity will generate a voltage that changes over
time to make the plotted signal more interesting.
√
Change the
HIGH 14
command to
LOW 14
. What do you see now?
Figure 1-17:
High signal
example from a
BASIC Stamp
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