how to interface temprature sensore and fan by 8051 or avr ATmega 8535

[mohamed]

hello all

 

i want to interface temprature  sensore and fan by 8051 or avr ATmega 8535

and with lcd display to show temperature

 

if temperature reach 25 degree the fan Working

i want circut diagram and programing  code to do this job by 8051 or avr ATmega 8535

 

thnx in advance

[dagakshay]

helo mohamed,

you need to use ADC for that, here i am pastin a link for AVR ADC…in you case divide the o/p of ADC by 2 (ADC o/p / 2) will be the correct temperature temperature.

 

http://www.engineersgarage.com/embedded/avr-microcontroller-projects/adc-circuit

 

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