we are using LM35 IC to sense ambient temperature and this analog output from LM35 is converted to digital data using AVR A/D converter… after processing this data, corresponding output is used to show current temperature on display device like 16x2 LCD and it also send sms to a given mobile number when temperature is very high. Similarly, this system has smoke and light sensor which senses their environment and send status to display as well as to send sms to a given mobile number using GSM communication system, if any smoke or high light is detects. This way industrial automation system gives complete protection to the system…