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Home › Magazines › 2008 › July/August › Portable Thermometer

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Portable Thermometer

Published in issue 379, July/August 2008

The small circuit described here is very easy to use and consumes so little current that it will work for the battery's shelf life. The circuit uses a standard LM35DZ sensor whose analogue output voltage is buffered by an LM358. The voltage is read by the microcontroller and converted into a BCD value so it can appear on the multiplexed 7-segment displays.

Extra info, Updates

Free downloads

02 July 2008

the type number shown in the circuit diagram for IC5 should be: PIC16F684.

 

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

 

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Article PDF
5 Elektor Credits
 

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Programmed controller PIC16F684
080418-41 (USD 14.60)
 

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Software

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

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