27220 Parallax Inc, 27220 Datasheet - Page 122
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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EXPERIMENT #19: SOUND EFFECTS (SFX)
This experiment uses DTMFOUT and FREQOUT to mimic telephone system sounds,
create sound effects, and even play a simple song.
Look It Up: PBASIC Elements to Know
Building the Circuit
Program: SW21-EX19-Sound_FX.BS2
' {$STAMP BS2}
' {$PBASIC 2.5}
' -----[ Program Description ]---------------------------------------------
'
' Demonstrates sound FX and simple music using FREQOUT and DTMFOUT.
' -----[ I/O Definitions ]-------------------------------------------------
Speaker
' -----[ Constants ]-------------------------------------------------------
R
C
Cs
D
Ds
E
F
Fs
•
•
DTMFOUT
INPUT
PIN
CON
CON
CON
CON
CON
CON
CON
CON
0
33
35
37
39
41
44
46
0
' speaker on pin 0
' rest
' ideal is 32.703
' ideal is 34.648
' ideal is 36.708
' ideal is 38.891
' ideal is 41.203
' ideal is 43.654
' ideal is 46.249
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