122-28176 Parallax Inc, 122-28176 Datasheet - Page 132
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
- Current page: 132 of 330
- Download datasheet (11Mb)
Note the period of the waveform. The time represented between each horizontal major
division, or dashed vertical line, is 2 ms. A complete cycle takes approximately 3.6
divisions.
Frequency is the inverse of period, f = 1/T.
More accurate readings are obtained by the software and displayed below the waveform –
133 Hz and 7.5 ms. How does the frequency compare to what the BASIC Stamp was
reading for a count of 1 second? Also note that the waveform does not go from HIGH to
LOW sharply. The rise and fall of the wave takes a finite amount of time (about 0.4 ms).
This is due to the time required for the encoder vanes to transition and the response of the
phototransistor.
Figure 4-21 Waveform of Phototransistor Output for 1 Cycle/Revolution Encoder
3.6 div x 2 ms/Div = 7.2 ms for the period of the wave (T).
f = 1/7.2 ms = 138 Hz, or the number of cycles per second (Hz).
Related parts for 122-28176
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
MANUAL FOR SUMOBOT
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
GUIDE STUDENT SMART SENSORS
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
MANUAL PROPELLER
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
LEAD WIRES FLYING CABLE III/IV
Manufacturer:
Xilinx Inc
Datasheet:
Part Number:
Description:
BOARD ADAPTER AND FLY LEADS
Manufacturer:
Xilinx Inc
Datasheet:
Part Number:
Description:
PLATFORM CABLE USB II
Manufacturer:
Xilinx Inc
Datasheet:
Part Number:
Description:
KIT STARTER COOLRUNNER-II BUNDLE
Manufacturer:
Xilinx Inc
Datasheet:
Part Number:
Description:
Microcontroller Modules & Accessories DISCONTINUED BY PARALLAX
Manufacturer:
Parallax Inc
Part Number:
Description:
Microcontroller Modules & Accessories DISCONTINUED BY PARALLAX
Manufacturer:
Parallax Inc
Part Number:
Description:
BOOK UNDERSTANDING SIGNALS
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
BOARD EXPERIMENT+LCD NX-1000
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
IC MCU 2K FLASH 50MHZ SO-18
Manufacturer:
Parallax Inc
Datasheet: