It is a nice project and easy to implement. Microcontroller 8051 is the most important part of this project. I have implemented this circuit on proteus software for virtual simulation and also completed hardware. I have used a temperature sensor LM325 to detect the temperature. Temperature sensor detects the temperature and gives output in analog form. As we know that microcontroller cannot process analog data so that we have to convert it in suitable digital form to process it and display it on LCD.
A TO D CONVERSION: To convert the analog output given by LM325 i have used an A2D converter ADC 0808. ADC 0808 converts the analog input into suitable digital output of 8 bit so that it can be processed easily by the microcontroller.
Operation: As we know that LCD cannot display the hex value. We need to convert it into ASCII equivalent to display on LCD.
CLICK HERE TO SEE PROGRAM FOR TEMPERATURE DETECTOR
