28018 Parallax Inc, 28018 Datasheet - Page 3

• Manufacturer Part Number: 28018
• Description: MODULE SENSOR TEMP+HUMIDITY
• Manufacturer: Parallax Inc
• Series: Sensirion SHT11r

Specifications of 28018

• Output Type: Digital - 2-Wire
• Sensor Type: Humidity and Temperature
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

' This program demonstrates the interface and conversion of SHT11/15 data
' to usable program values.
' PBASIC, specifically the ** operator.
'
' For detailed application information on the use and application of the
' ** operator, see Dr. Tracy Allen's web page at this link:
'
' -- http://www.emesystems.com/BS2math1.htm
'
' For SHT11/15 documentation and app notes, visit:
'
' -- http://www.sensirion.com
' -------------------------------------------------------------------------
' Revision History
' -------------------------------------------------------------------------
' -------------------------------------------------------------------------
' I/O Definitions
' -------------------------------------------------------------------------
ShtData
Clock
' -------------------------------------------------------------------------
' Constants
' -------------------------------------------------------------------------
ShtTemp
ShtHumi
ShtStatW
ShtStatR
ShtReset
Ack
NoAck
No
Yes
DegSym
' -------------------------------------------------------------------------
' Variables
' -------------------------------------------------------------------------
Parallax, Inc. • Sensirion SHT11 Sensor Module (#28018) • 07/2003
PIN
PIN
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
1
0
%00011
%00101
%00110
%00111
%11110
0
1
0
1
186
This program uses advanced math features of
' bi-directional data
' read temperature
' read humidity
' status register write
' status register read
' soft reset
' degrees symbol for DEBUG
3