27220 Parallax Inc, 27220 Datasheet - Page 122

• Manufacturer Part Number: 27220
• Description: BOOK STAMPWORKS
• Manufacturer: Parallax Inc

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

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