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Project using LM35, ADC0804, LCD in Assembly
Sensor technologies. topic
Posted by Rosicky on 22 March, 2007 - 12:43 am
Hi all,

I'm doing a project on Atmel microcontroller.

The aim of the project is to sense the ambient temperature using LM35, digitize the data using ADC0804 and then display the temperature on an LCD. When the temperature exceeds a certain threshold display the message.

Components used are:
LM35 (temperature sensor)
ADC0804
At89c51 (microcontroller)
LCD
8051 assembly language

I have written the source code in assembly language. I want to check it out. My e mail ID is rosickyman @ gmail. com. Looking forward to your reply soon.

Thank you.


Posted by Anonymous on 30 April, 2007 - 11:44 pm
Sir,

I am also doing the same project. If you have gathered the information on this project, please forward to me as soon as possible all the reports and circuit diagrams. If I find any information I will forward to you.


Posted by Anonymous on 24 May, 2007 - 11:26 pm
Hey,

I too need the diagram. I'm working on the same project and I hit some bumps, really need some help here.

Please let me know if you can help me.


Posted by Haider Iftikhar on 20 July, 2007 - 1:52 pm
Hey,
I am doing the same project but instead of using LM 35 as my sensor i am using a thermistor on a wheat stone bridge then interfaced to a ADC 0804 which is then interfaced to an EPROM and finally the eprom is interfaced to a 7 segment decorder leading a display ton the 7 segment >
my problem

1) is that i need to scale the output voltage of the bridge so that it displays temprature rather than its equivalent voltage

2) i want to measure the temperature of human body so i need to display so i would like to know whether LM35 would be a good sensor or not
as i am using a very sesitive thermistor which doesnot show linear change

Please let me know if you can help me.


Posted by chandra mouli on 17 February, 2011 - 8:15 am
Hey,guys...
i started project with ADC0804 and LM35DT ..by using interface of eprom memory to execute software written in c language ... it is too heavy circuit...


Posted by Nagesh on 10 June, 2007 - 7:54 pm
Hi all
I have done a project in same field, ill give the details to u on monday as i have final demo tomo ....

so wish me luck , and please mail me if u need the project details....
Regards


Posted by Rohan on 29 November, 2007 - 1:33 am
Hi all,

I am doing the same project but added new feature. It saves the data in PC and sends sms if temp. lowers than 28 degree and increses above 40 degree. If anyone is having data related this then please send me the data at rohan_arya@yahoo.co.in by 30th Nov 2007.

Regards,


Posted by ali on 19 December, 2007 - 2:10 am
Hey, I need the details of yuor project, my id is aquarian_nauman@hotmail.com

Plz do help me out.


Posted by piyush on 25 April, 2008 - 11:36 pm
I really want the details for the same project. If anybody has it, then please mail me at piyushbansal2008 @ rediffmail. com


Posted by daye on 13 March, 2011 - 9:50 am
hi please can forward me detail of the project am doing the same project but am really struggling and need help please. thanks in advance.

> I have done a project in same field, ill give the details to u on monday as i have final demo tomo ....

> so wish me luck , and please mail me if u need the project details....
> Regards


Posted by foo on 13 September, 2009 - 12:00 am
how you connect the LM 35 to ADC 0804?


Posted by curt wuollet on 13 September, 2009 - 11:21 am
National Semiconductor has extensive information on how to use the LM 35 with and without an ADC. Google will find it.

Regards,
cww

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