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Microcontroller › 8051 › celsuis and fahrenheit digital thermometer
i have made a project- lcd based celsius and
fahrenheit
digital thermometer using microcontroller 8051…i wanted to ask how can
we
get the exact temperature…means if we rotate the preset then the
temperature changes …sometimes it reaches 120 F…which is
impossible…in
dis way we will not be able to get the exact atmospheric
temperature…please
please help!!!
the reason is to convert your analog value of your temp values using adc reference pin of adc is the main consideration . exmple for 1c what is the voltage value you have to know. from that you do some simple calc and set that voltage level in your adc ref pin
you will get correct values
hello harjas can you tell me how did u run your circuit because i am not successful
and i cant understand why its not working my lcd did not showing anything and also adc ref. pin showing nothing tell me what i hav to do now!!
Hi Sanan,
Please post your circuit here to get better help from us.
Hello
Sir kindly pay attention to my requestt its
Its realy urgent.
hello sir
Kindly Pay attention to my request i m still waiting
i am not able to understand….please can anyone tell me the steps to follow…
I hav followed all steps which is possible but no any output on lcd