28129 Parallax Inc, 28129 Datasheet - Page 109
![TEXT BASIC ANALOG & DIGITAL](/photos/6/49/64954/mfg_28129_sml.jpg)
28129
Manufacturer Part Number
28129
Description
TEXT BASIC ANALOG & DIGITAL
Manufacturer
Parallax Inc
Type
Programmingr
Datasheet
1.28129.pdf
(176 pages)
Specifications of 28129
Style
Book
Title
Basic Analog and Digital
Contents
Basic Analog and Digital Text
Product
Microcontroller Accessories
Lead Free Status / RoHS Status
Not applicable / Not applicable
- Current page: 109 of 176
- Download datasheet (3Mb)
Enter this program into the BASIC Stamp Editor. This is not a modification to the
previous programs. Also, the output is the piezoelectric speaker and there is no Debug
Terminal output. Save this program as P5_2RO.bs2.
' Basic Analog and Digital - PL5_2R0.bs2
' D/A Converter Making Sound, n changes volume, m changes frequency
' {$STAMP BS2}
' {$PBASIC 2.5}
n
m
DIRB=15
n = 15
m = 500
DAC:
GOTO DAC
P7
P6
P5
P4
OUTB = n
PAUSE m
OUTB = 0
PAUSE m
VAR
VAR
2 k
2 k
2 k
2 k
Ω
Ω
Ω
Ω
Nib
Word
Vss
1 k
1 k
1 k
2 k
Ω
Ω
Ω
Ω
LM358
2 k
Ω
Vdd
Vss
A
Vss
Figure 5-5
Piezoelectric Speaker Circuit
Connected to the buffered output
of the D/A converter.
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