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Interfacing of LM35 with PIC18F4550. Need Help.

Posted at: 01 - Mar - 2017

Category: 8051 Microcontroller Projects

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Plz, Help me. Not able to get correct values on LCD.
I am interfacing LM35 temperature sensor with PIC18F4550 with 20Mhz frequency.
I tried a lot. But, not getting right output.

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Comments on ‘’ Interfacing of LM35 with PIC18F4550. Need Help. ‘’ ( 1 )

Says: March 01, 2017 03:01 PM

~~[quote=Josephine post_id=204 time=1488362454 user_id=81]~~ Plz, Help me. Not able to get correct values on LCD.
I am interfacing LM35 temperature sensor with PIC18F4550 with 20Mhz frequency.
I tried a lot. But, not getting right output. [/quote] The LM35 produces an analog dc voltage in proportion to the device temperature. Your code did make it to your post so we cannot help you very well. At a guess I would assume you are reading the voltage with the A/d and what you get does not correspond to what you expect? Or are you having trouble understanding how to convert the A/D reading to displayable characters? Or maybe there is an offset in the voltage/temp equation that you are not taking into consideration? As I said, just guessing at this point.......
Read Also:
~~[url=http://www.theengineeringprojects.com/2016/01/interfacing-lm35-pic-microcontroller.html]~~INTERFACING OF LM35 WITH PIC MICROCONTROLLER[/url] Reply

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