70009 Parallax Inc, 70009 Datasheet - Page 62
70009
Manufacturer Part Number
70009
Description
BOOK UNDERSTANDING SIGNALS
Manufacturer
Parallax Inc
Type
Signal Analysisr
Datasheet
1.70009.pdf
(137 pages)
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
Available stocks
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Manufacturer
Quantity
Price
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RCTimeConstant.bs2 to Demonstrate Charge/Discharge Curves
' Understanding Signals - RCTimeConstant.bs2
' Read photoresistor in RC-time circuit using RCTIME command.
' {$STAMP BS2}
' {$PBASIC 2.5}
DO
LOOP
HIGH 0
HIGH 15
PAUSE 10
LOW 0
LOW 15
PAUSE 10
√
√
Run the program RCTimeConstant.bs2.
Arrange your display using the red/blue arrows on the left to separate the two
signals as shown in Figure 4-7.
' 5 V on P0
' 5 V to capacitor for charge curve
' time for capacitor to fully charge
' ground capacitor for discharge curve
' same to P0 for comparison
Figure 4-7:
OPTAscope
display of RC
circuit with a
220 Ω resistor
and a 10 µF
capacitor