FIRE SAFETY SYSTEM DESIGN AUTO MICROCONTROLLER AT89S51

Fire Safety circuit system is a tool that serves as the main security of the catastrophic fires that works automatically. The aim is to prevent and stop the fire disaster. It consists of several circuit blocks, including blocks of power supply with output voltage of 12V, 5V and-5V, the sensor block using the smoke sensor and temperature sensor, aligning block signal by using IC LM339 as a comparator, the control blocks by using the microcontroller AT89S51, block output by using the relay, buzzer water pumps, mobile phone, and block the viewer temperature using ICL7107 At the time the fire happened so automatically output at the buzzer, water pump and cellular telephones will light when any one sensor is active or when the two active sensors . And after the sensor is not active then all output will automatically stop working, indicating that the fire was able to overcome.