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Home › Magazines › 2008 › June › Thermo-Snake

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Thermo-Snake

a 128-channel USB’ed datalogger for a 1-wire thermal monitoring network

Published in issue 378, June 2008

Thermo-Snake
It’s often necessary to monitor the temperature of different rooms. For example in a green-house with various kinds of plant, in a wine cellar, on a motor surface or simply in your home. There are commercial dataloggers designed for this but they come at a price. Here’s a DIY alternative with real-time monitoring and recording capabilities.

Extra info, Updates

Components

Relevant websites

Free downloads

With some DS18B20 devices it may be necessary to lower the value of R2 to 2.2 kohm for the PIC micro to recognise the sensor and the PC software to enumerate it.

The DS1820 sensor does not work in this circuit due to a different device identifier word.

 

27 August 2008

A new release (v1.2) of NET-THERMO is available that fixes issues with negative temperature values and replaces the log file separator character. Also, during temperature monitoring you can view
the data packet in the StatusBar.

Click below to download a PDF copy of this article from Elektor magazine.

 

Downloads 
Article PDF
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PCB PDF
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Order this magazine 
Magazine June 2008
UK378 (USD 6.30)
 

Order from Elektor 
PIC18F2550, ready-programmed
070122-41 (USD 21.30)
PCB, bare
070122-1
 

Free downloads 

Software

Free download
Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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