27220 Parallax Inc, 27220 Datasheet - Page 166

• 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 #28: VOLTAGE MEASUREMENT
This experiment demonstrates the use of the popular ADC0831 analog-to-digital
converter IC to read a variable voltage input
Look It Up: PBASIC Elements to Know
Building the Circuit
Program: SW21-EX28-ADC0831-Simple.BS2
' {$STAMP BS2}
' {$PBASIC 2.5}
' -----[ Program Description ]---------------------------------------------
'
' This program demonstrates reading a variable voltage with an ADC0831
' analog-to-digital converter chip. This program uses a Vref input of
' 5.000 volts (Vdd) for a bit resolution of 19.6 millivolts.
' -----[ I/O Definitions ]-------------------------------------------------
CS
Clock
•
MSBPOST (used with SHIFTIN)
PIN
PIN
0
1
' chip select (ADC0831.1)
' clock (ADC0831.7)