28129 Parallax Inc, 28129 Datasheet - Page 82
![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
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RETURN
Calc_Volts:
RETURN
Display:
RETURN
The Output
Given perfect resistor values, the output would be 3.00 volts. The resistors used in this
sample have a 10% tolerance. This means that the measured resistance for each resistor
should have a value within ±10% of what it’s supposed to be. Because of this, we can
expect the output to be slightly different than what’s expected, such as the measured
value in Figure 4-3. Given perfect resistor values, the measurement would be 2.20 volts.
LOW CLK
PULSOUT CLK, 210
SHIFTIN DataOutput,CLK,MSBPOST,[adcBits\8]
v = 5 * adcBits / 255
r = 5 * adcBits // 255
v2 = 100 * R / 255
v3 = 100 * R // 255
v3 = 10 * v3 / 255
IF (v3 >= 5) THEN v2 = v2 + 1
IF (v2 >= 100) THEN
ENDIF
DEBUG HOME, CR, CR, "Decimal value to DAC:
DEBUG CR, CR, "Binary value to DAC:
DEBUG CR, CR, "DVM Reading:
v = v + 1
v2 = 0
", DEC1 v, ".", DEC2 v2, " Volts"
", BIN4 n
", DEC2 n
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