1-Wire
Also, see the link to Application Note 155. It explains in detail each API and the 1-Wire devices that are supported.
1-Wire SDK for Windows
Application Note 155
OneWireViewer and iButton Quick Start Guide
OneWireViewer and iButton Quick Start Guide
1-Wire Drivers
here
. It is based almost word for word on the
Xfree86 license
. Developers are free to use and integrate the code into their applications without restriction.
Maxim Support Center
Software Authorization Kit
Maxim Support Center
Software Resources Web Page
Maxim Support Center
ASD Solutions Providers
Software Resources Web Page
Maxim Support Center
Software Resources Web Page
Maxim Support Center
Software Resources Web Page
Maxim Support Center
Software Resources Web Page
Maxim Support Center
Software Resources Web Page
Maxim Support Center
Software Resources Web Page
Maxim Support Center
accessories
The iButton can be mounted in a key fob that can be put on a keyring. There are three styles of key fob. It is recommended that the F5 type can be used with the Dallas fobs.
There are some other companies that have key fobs available for the iButton.
Dallas key fobs
Other key fobs
The iButton can be mounted in a key fob that can be put on a keyring. There are three styles of key fob. It is recommended that the F5 type can be used with the Dallas fobs.
There are some other companies that have key fobs available for the iButton.
Dallas key fobs
Other key fobs
iButton Solutions search
humidityloggers
Because of this, we recommend the "Hygrochron Viewer" as the demonstration program of choice for the DS1923.
1-Wire SDK for Windows
After this installation is complete install the Hygrochron Viewer.
1) If you haven't already, download and install the 1-Wire Drivers (see link below).
2) Download the 1-Wire SDK for Windows (see link below).
3) Open the 1-Wire SDK's zip file and navigate to here:
Examples/OW.NET/C#/bin
4) On your PC make a directory from where you would like to launch HygrochronViewer (for example, call it "HygroView").
5) Copy/Extract the files inside the zip file in Examples/OW.NET/C#/bin to your new directory.
6) Launch HygrochronViewer by double-clicking the executable.
Visual J# 2.0 (second edition) Redistributable Package for .NET
1-Wire Drivers
1-Wire SDK for Windows
Maxim does not currently manufacture a starter kit for the DS1923. However, that said, you could purchase the Thermochron Starter Kit, DS1921K. While it does not contain a DS1923, the kit can be used with any iButton. The kit contains a USB Port adapter, a "Blue Dot" cable, and a DS1921G Thermochron. Purchasing this kit, along with a DS1923 will work as a "Starter Kit".
DS1921K
Embedded Data Systems
Our temperature data loggers determine the current temperature by measuring the inherent physical properties of their onboard integrated circuits. Due to this technique, we generally know of no physical mechanism to cause our temperature data loggers to go out of calibration over the lifetime of the part except by exhaustion of the internal lithium power source to the point the part is no longer functional. Exhaustion of the internal lithium battery is caused by age, temperature, and sampling rate(s). Our datasheets show detailed plots of expected device lifetime based on time, temperature, and sampling rate(s).
Our humidity logger measures %RH using a standard humidity sensor. Therefore, it will need to be recalibrated periodically depending on the environment it is operating in since absorption of contaminants can degrade its accuracy.
If you are concerned or you have regulatory requirements regarding accuracy, then we recommend you work with a third party to perform recertification and/or software recalibration of your data loggers.
Maxim Standard Terms and Conditions
Calibration Services
Understanding the IP Ratings of iButton Data Loggers
iButtons
http://www.maximintegrated.com/appnotes.cfm/an_pk/3808
Information is transferred between the iButton and host with a momentary contact.
Click here to see
iButton Applications
from around the world.
1. iButtons.
2. A host system -- a PC, a laptop, or a hand-held computer.
3. A
1-Wire Adapter
and
iButton Probe
to get information into and out of the button.
4. Software (links below)
1-Wire for Windows (TMEX)
1-Wire Public Domain Kit
1-Wire API for Java
iButton Fobs
iButton Mounting Options
Partner Mounting Products
http://support.maxim-ic.com/ibutton
1-Wire Software Authorization Kit
1-Wire Drivers for Windows (TMEX)
Search by Product Needs
Search by Developer Name
Search by Location
The ROM ID number is a unique ROM code that is 64 bits long. This number is factory lasered into each 1-Wire device. This assures absolute traceability because no two parts have the same number. The first 8 bits are a 1-Wire family code. The next 48 bits are a unique serial number. The last 8 bits are the CRC of the first 56 bits.
http://support.maxim-ic.com/1-wire
If humans are going to be interfacing with the iButton (picking it up), the F5 can is easier to handle.
Fobs company list
Lookup Lead-Free/RoHS Products and Content Data
http://support.maxim-ic.com/ibutton
thermochrons
Thermochron Overview
Entire Line of Data Loggers
DS9107 iButton Capsule
Third-party waterproofing
All Data Loggers
Other Probes
Other Partner Options
See the lifetime graphs in the device's datasheet.
Finally, if you have a DS1922/DS1923 data logger, Maxim provides an application note on the topic.
All Data Logger Datasheets
DS1922/DS1923 Battery Gas Gauge
DS9107 iButton Capsule
Waterproof Loggers & Enclosures
Thermochons are IP56 Rated (water resistant but not waterproof)
page
.
Operating any logger above or below its thermal operating range can damage its internal battery or components.
If the logger records data while in an environment above or below its thermal operating range, the recorded data collected will not go above or below the specified operating range. The logger will continue to operate at temperatures above or below its operating range for an unspecified time before stopping due to lack of battery power. Depending on the length of time that the logger is exposed to temperatures outside of its operating range, the logger may continue operating properly.
Storage or operation above 50C significantly reduces battery life.
See each loggers datasheet for expected life span at different temperatures.
All iButton Data Loggers
For commercial-grade turnkey software, please see the link below.
OneWireViewer & Drivers
Software Development Kits & Examples
Commercial Software Providers
1-Wire Public Domain Kit
1-Wire API for Java SDK
There is also an Application Note that describes how to export the data from Thermochrons into an Excel spread sheet and graph the results. The Application Note is
App Note 3809
Exporting DS192x Logger Data from the OneWireViewer into Excel
.
We also have several partners with software products that will automatically download Thermochron data into an Excel spread sheet.
Partner Software Products
All Data Logger Data Sheets
OneWireViewer Software
TempLoggerCalc Application
Our temperature data loggers determine the current temperature by measuring the inherent physical properties of their onboard integrated circuits. Due to this technique, we generally know of no physical mechanism to cause our temperature data loggers to go out of calibration over the lifetime of the part except by exhaustion of the internal lithium power source to the point the part is no longer functional. Exhaustion of the internal lithium battery is caused by age, temperature, and sampling rate(s). Our datasheets show detailed plots of expected device lifetime based on time, temperature, and sampling rate(s).
Our humidity logger measures %RH using a standard humidity sensor. Therefore, it will need to be recalibrated periodically depending on the environment it is operating in since absorption of contaminants can degrade its accuracy.
If you are concerned or you have regulatory requirements regarding accuracy, then we recommend you work with a third party to perform recertification and/or software recalibration of your data loggers
Maxim Standard Terms and Conditions
Calibration Services
Thermochron NIST Traceable Certificates
weatherstation
Solutions Search
.