design temperature sensor

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kelvini

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any suggestion on how to design a temperature sensor using ADC, lm35 n microcontroller....
 

LM35 is a sensor itself, connect to the ADC input pin of your microcontroller, output is 10mV/C
 

Give the inputs of LM35 to an ADC ar any microcontroller with inbuilt ADC. If u r giving the input to any external adc, give the pulse from IC555 to its clock i/p.
 

You can use DS18S20 digital termo. it's cool with memory, alarm, and single wire interface.

Try it
 

see this

h**p://roboticsforyou.blogspot.com/2008/02/pic16f877a-video-tutorial-c-program.html
 

what components i can add on if i wanna use four 7segments as output?
seems like i'm running out of ports....
 

designing a temperature sensor is some thing different....dont you think so
 

kelvini said:
any suggestion on how to design a temperature sensor using ADC, lm35 n microcontroller....


I would suggest you to use an OPAMP to condition the sensor to the scale to which the ADC responds and then interface it .



Ts
 

another option:
u can also use voltage divider network for this purpose
 


Since the O/p of the sensor is too small we cant chop it down anyfurther.


Regards/
Ts
 

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