122-28176 Parallax Inc, 122-28176 Datasheet - Page 135
122-28176
Manufacturer Part Number
122-28176
Description
GUIDE STUDENT PROCESS CONTROL
Manufacturer
Parallax Inc
Specifications of 122-28176
Accessory Type
Manual
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Propeller Education (PE) Kit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
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Figure 4-23 Waveform of Phototransistor Output
for 8 Cycle/Revolution Encoder
√
√
√
√
Place the encoder wheel for 2 Cycles/Revolution on the fan, doubling the
number of counts for the same unit of time.
In the code, change the value of the constant
Complete Table 4-4 for the sample times listed.
Repeat for all the encoder wheels.
CyclesPerRev
Troubleshooting Tip: At some point the BASIC Stamp may read an RPM of zero or
abnormally low. If this occurs, complete Activity #7; then return to finish this table and
Activity #6.
CON
2
CyclesPerRev
to 2.
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