70009 Parallax Inc, 70009 Datasheet - Page 94

• 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

Object Detection with the 38kHzInfraredwithDetection.bs2 program.
Since the BASIC Stamp can’t multitask, it cannot read the output of the detector while
sending the
immediately after you send the 40 kHz signal.
' Understanding Signals - 38kHzInfraredwithDetect.bs2
' 38 kHz infrared signal with detector feedback
' {$STAMP BS2}
' {$PBASIC 2.5}
IR_DETECT
LOW 7
START:
PAUSE 20
FREQOUT 7,1,38500
IR_DETECT = IN8
√
Run the program 38kHzInfraredwithDetect.bs2.
FREQOUT
VAR
signal. However, you can successfully read the detector’s output
Bit
Figure 7-6:
Infrared object
detection