Copy of MINI PROJECT Fire Alarm Using 555 Timer

Almost all the industrial sector works with heavy machinery and crucial mechanical and electrical devices which are sensitive to be handled and a minor mishandling or technical issue can cost several lives and a severe loss of money. These types of industries or gas stations use proper alarm systems for emergencies. The fire alarm system is one of the crucial needs in these kinds of industrial sector, but the residential and commercial sector also utilizes such systems to ensure safety. A fire alarm system is designed to aware people of fire, smoke, carbon monoxide, or any other emergency so that necessary action can be taken. The major component of the circuit is the temperature sensing element such as a thermistor which is a temperature sensing resistor and changes resistance according to the temperature. The resistance is inversely proportional to the temperature. Here we have built a circuit using a 555 timer IC, NPN transistor, and a few other components to operate.