28176 Parallax Inc, 28176 Datasheet - Page 135

• Manufacturer Part Number: 28176
• Description: KIT PARTS PROCESS CONTROL W/TEXT
• Manufacturer: Parallax Inc

Specifications of 28176

• Accessory Type: Process Control
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: BASIC Stamp® 2 and Board of Education
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

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.