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Texas Weather Instruments developed the 1-Wire™ Weather Station, using technology licensed from Dallas
Semiconductor (see Sensors magazine June 1998),
to solve the problems of attaching multiple cables, power supplies and
consoles associated with weather instruments to a Windows PC. The 1-Wire
Weather Station utlizes the Dallas Semiconductor 1-Wire MicroLan. All that
is needed to get data directly from various sensors into your computer
is a host adapter (HA3) that plugs into the computer's serial port, one
twisted pair cable, any of the Texas Weather Instruments 1-Wire weather
sensors and the OneSix™ server software loaded into a Windows PC. There
are no power supplies, consoles, displays or switches needed with this
system. Adding a sensor is a snap by simply plugging the new device anywhere
in the 1-Wire cable. The
OneSix™ server identifies the new sensor and the
sensor calibration information.
The weather data ends up in
a Windows DDE link via Points Six's
OneSix™ server. What is DDE? Dynamic Data Exchange (DDE) is a standard
inter-application
communication protocol built into the Microsoft® Windows® operating
system. It allows Windows® programs that support DDE to exchange data
between themselves. By simply specifying an application, topic and item a
client application can exchange data with a server application. A DDE
server is a program that has access to data and can provide that data to
another Windows® programs. A DDE client is a program that can obtain data
from a server.
OneSix™ is a data acquisition Dynamic Data Exchange (DDE)
server that acquires data from weather sensors attached to a 1-Wire™ network
and passes this data using DDE to a client application. Any Windows®
application that can use DDE can obtain this data from the OneSix™ Server.
Examples of such applications include Weather View 32, Microsoft® Office
products like Word® & Excel®, Wonderware® Intouch, National
Instruments® LabView® & LookOut®, Capital Equipment Corp.®
TestPoint, general development applications like Microsoft® Visual
Basic and Borland® Delphi. This system allow you to run several software
packages at the same time all reading from one set of weather sensors.
Click here
for realtime weather from a 1-Wire Weather Station and Weather View 32!
1-Wire Equipment
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Barometric
Pressure Sensor ($229)
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HA3
Host Adapter
includes OneSix Server
($99)
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HA4
Isolated Host Adapter
includes OneSix Server
($169)
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1-Wire
Price List
1-Wire
Manual
Point Six is a
registered trademark of Point Six, Inc.
1-Wire
is a trademark of Dallas Semiconductor.
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