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temperature sensor project:help needed!

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kiranmayik

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temperature sensor project

hi everyone im 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 and when the temperature exceeds a certain threshold display the message and simultaneously activate a buzzer.

components used are:
lm35(temperature sensor)
adc0804
at89c51(microcontroller)
lcd

source code in 'c'

if u have ANY information or data or useful links regarding this project please reply

thanks in advance :)
 

projects on lcd with temperature sensor

For Analog to Digital Converter there are inbuilt odules for the same in many atmel microcontrollers.You can check the datasheet for that.

tronix
 

    K

    kiranmayik

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simple temperature sensor project

Give this a look... I know, I know it is PIC based but it might help...
**broken link removed**
 

    K

    kiranmayik

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temperature sensor projects components used

Salam!
I think that you should use PIC or AVR for this project since they have built in ADC's as compared to 8051.

If you decide to use PIC or AVR then it is very easy to read the temperature from LM35 and display it on an LCD.

I have got the codes for both PIC and AVR so feel free to ask for help.

Check the availability of these controllers in ur home country since they are easily available here in Pakistan.

Allah hafiz.
 

    K

    kiranmayik

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mazidi temperature sensor

hi
i hope it can help u
thank

buntheun
 

    K

    kiranmayik

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project book on temp sensor

kiranmayik said:
hi everyone im 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 and when the temperature exceeds a certain threshold display the message and simultaneously activate a buzzer.

components used are:
lm35(temperature sensor)
adc0804
at89c51(microcontroller)
lcd

source code in 'c'

if u have ANY information or data or useful links regarding this project please reply

thanks in advance :)
Click to expand...


currently for adc initialize.. using keil

// Project: Analog to Digital Converter


#include <REG51.H>

sbit RD1 = P3^7;
sbit WR1 = P3^6;
sbit INTR = P3^5;
sbit led = P0^7;


// Decision for Turn ON LED

void decision (unsigned char range1)
{
if (range1 > 0x40)
{
led = 1;
}
else
led = 0;
}


//Main Program for Reading ADC

void main ()
{
unsigned char value;
P1 = 0xFF; // Initialize
P0 = 0xFF;
INTR = 1;
RD1 = 1;
WR1 = 0;

while (1)
{
WR1 = 0; // Start Conversion
WR1 = 1; // Low-to-High
while (INTR == 1);
RD1 = 0; // Start Read Data
value = P1; // Read Data from ADC
RD1 = 1; // End Read Data
P2 = value; // Display at Port 2
decision (value); // Decision Making
}
}
 

    K

    kiranmayik

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atmel temperature sensor adc tos

for reference try this link:

**broken link removed**
**broken link removed**

regards
 

    K

    kiranmayik

    Points: 2
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project temperature sensor with display

thanks bro
 

see this, interfacing LM35 with ADC0804 and parallel port. Use the same code logic
h**p://booksbybibin.14.forumer.com/viewtopic.php?t=63
LCD With parallel port
h**p://booksbybibin.14.forumer.com/viewtopic.php?t=60

Bibin John
www.bibinjohn.tk
 

    K

    kiranmayik

    Points: 2
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helo...please refer to this book

The 8051 microcontroller and embedded systems : using Assembly and C / Muhammad Ali Mazidi, Janice Gillispie Mazidi, Rolin D. McKinlay

all example program and theory about your project available in this book....
 

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    kiranmayik

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hi

The best solution for your problem is the Bood written by M. ali mazidi. it is the best book with alots of examples in assembly and c. there is a good topic on temperature senser using atmel 89c51 and ADC 08xxx.
 

    K

    kiranmayik

    Points: 2
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kiranmayik said:
hi everyone im 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 and when the temperature exceeds a certain threshold display the message and simultaneously activate a buzzer.

components used are:
lm35(temperature sensor)
adc0804
at89c51(microcontroller)
lcd

source code in 'c'

if u have ANY information or data or useful links regarding this project please reply

thanks in advance :)
Click to expand...
 

thanks for all informations

Added after 48 minutes:

thanks alot and you need a/d
 

check this out, use's a pic and basic without any external ADC
**broken link removed**
 

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