28119 Parallax Inc, 28119 Datasheet - Page 94

• Manufacturer Part Number: 28119
• Description: KIT UNDERSTANDING SIGNALS
• Manufacturer: Parallax Inc

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

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