70009 Parallax Inc, 70009 Datasheet - Page 37
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
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Measuring the Servo Pulse Widths with ServoCentering.bs2
' Understanding Signals - ServoCentering.bs2
' Demonstrate a continuous pulse width for servo control
' {$STAMP BS2}
' {$PBASIC 2.5}
DO
LOOP
Each loop includes a short pulse of 1.5 ms followed by a 20 ms delay (Figure 2-7).
PULSOUT 14, 750
PAUSE 20
√
√
Run the program ServoCentering.bs2.
Under the Cursors tab slide the Cursor Settings switch to Paired Bars . Place the red
and blue vertical cursors on either side of the pulse to measure the width.
' 1.5 ms pulse
' 20 ms pause
Figure 2-7:
Servo
centering
pulses.