28029 Parallax Inc, 28029 Datasheet - Page 56
28029
Manufacturer Part Number
28029
Description
KIT PARTS SMART SENSORS W/TEXT
Manufacturer
Parallax Inc
Datasheet
1.122-28029.pdf
(340 pages)
Specifications of 28029
Accessory Type
Parts Kit
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
BASIC Stamp® or Javelin Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
28029PAR
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Figure 2-4: The Ping))) Sensor is Not Designed for these Situations:
a.
Page 44 · Smart Sensors and Applications
' Smart Sensors and Applications - PingTest.bs2
' Tests the Ping))) ultrasonic distance sensor
' {$STAMP BS2}
' {$PBASIC 2.5}
time VAR Word
DO
LOOP
Your Turn - Testing Range, Angle and Object Size
In terms of accuracy and overall usefulness, ultrasonic distance detection is really great,
especially compared to other low-cost distance detection systems. That doesn't mean that
the Ping))) sensor is capable of measuring "everything".
situations that the Ping))) is not designed to measure: (a) distances over 3 meters, (b)
shallow angles, and (c) objects that are too small.
PULSOUT 15, 5
PULSIN 15, 1, time
DEBUG HOME, "time = ", DEC5 time
PAUSE 100
√
√
Move the target to a distance of 30 cm from the Ping))) sensor and verify that the
value of the time variable roughly doubled.
Point your Ping))) sensor at a variety of near and far objects, and observe the
time measurements.
b.
c.
Figure 2-4 shows a few
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