70009 Parallax Inc, 70009 Datasheet - Page 37

• 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

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.