27220 Parallax Inc, 27220 Datasheet - Page 134
27220
Manufacturer Part Number
27220
Description
BOOK STAMPWORKS
Manufacturer
Parallax Inc
Datasheet
1.27220.pdf
(230 pages)
Specifications of 27220
Accessory Type
Booklet
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Not applicable / Not applicable
For Use With/related Products
StampWorks
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Not applicable / Not applicable
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PulseInput
' -----[ Constants ]-------------------------------------------------------
Scale
P90
P75
P50
P25
P10
' -----[ Variables ]-------------------------------------------------------
rValue
sValue
' -----[ Initialization ]--------------------------------------------------
Reset:
' -----[ Program Code ]----------------------------------------------------
Main:
DEBUG CLS,
DO
LOOP
PULSIN PulseInput, 1, rValue
rValue = rValue */ Scale
sValue = (rValue ** P50) + (sValue ** P50)
DEBUG CRSRXY, 13, 2, DEC rValue, CLREOL,
PAUSE 50
"Analog Input ", CR,
"------------ ", CR,
"Raw value... ", CR,
"Filtered.... "
CRSRXY, 13, 3, DEC sValue, CLREOL
PIN
CON
CON
CON
CON
CON
CON
VAR
VAR
15
$200
$E666
$C000
$8000
$4000
$1999
Word
Word
' pulse in from 555
' 2.0 us per unit
' 0.90
' 0.75
' 0.50
' 0.25
' 0.10
' raw value
' smoothed value
' get high portion of input
' convert to microseconds
' apply digital filter
' print results
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