Needed help reagarding PIC16F877A interfacing with LM35 code

[henry15]

Hi friends,

I am working on a project and i have no idea on pic programming. My project is to interface PIC16F877A with LM35 and when it gets body temperature between 37.5 Celsius to 40.0 Celsius, the led red light and buzzer should turn ON.
If the body temperature is between 36.8 Celsius to 37.5 Celsius, the led green turn on and it will check temperature every 15 minutes once....
Can anyone one help to understanding me the code for PIC.

 

[Nikunj Tanna]

Hi,

It would be good for you to divide your work in modules. LM 35 is analog sensor, it will give output in volts which is very low. So you need to amplify voltage before feeding it to microcontroller. Develop other modules from PIC controller side, like Buzzer, led on-off, timer and ADC individually. Integrate all after that. Hope this helps.

NIKS

 

[milind.a.kulkarni]

I will recommand you to refer
Serial Port Temperature Sensors - Hardware Interface
Seven Segment Display Thermometer with PIC Microcontroller | ermicroblog

will help you to work with PIC16F877a and LM35 ...code and every thing is there.... but PIC is i think is different

good luck.....

Milind

 

[engshahrul]

This is example PIC code with LM35.

 

[henry15]

Guys thanks for the reply...but im still blur in the code because i have no experience using embedded system using micro controller (PIC16F877A) with LM35....

 

[engshahrul]

Guys thanks for the reply...but im still blur in the code because i have no experience using embedded system using micro controller (PIC16F877A) with LM35....

You have no choice, you need to learn. It's just read ADC. You can start learn from simpler, that is worst project LED Blinking.