Fire Alarm Using Logic Gates

This simple fire alarm circuit using thermistor can be developed on your own over a solderless breadboard by following simple steps.

Fire alarm using logic gates. This is a simple fire alarm circuit using germanium diode and 555. 3v power supply is enough for the circuit. Read our privacy policy. 5 simple steps to build fire alarm project.

We run our own free to use test centre. Click the skype button bottom right. If you wish you can directly fix the buzzer without using relay. Practice tests and free video lectures for physics chemistry biology math s.

Led s as indicator used to show output level high 1 or low 0. Remote operated alarm circuit. Make a fire alarm using gates. We also offer videoconferencing with a tutor for which you need a webcam microphone graphics tablet and a skype account.

To sound the alarm the burglar has to step on the pressure pad or switch on his torch. Also read this interesting post. The fire alarm project is designed for developing a temperature control system using thermistor. Circuit 5 fire alarm circuit using germanium diode.

Hence it can be considered as a fire alarm mini project. Many houses don t have a fire alarm system so we need to design a fire alarm system using the digital logic system that all family members can use in single family residences. Free email and telephone support and advice. Or gate and gate and 3rd is not gate.

Picture of our logic gate project logic gates are primarily implemented using diodes or transistors acting as electronic switches. Alarms may be activated from smoke detectors and heat detectors. A summary of how each circuit behaves is called a truth table and the circuits themselves are usually called logic gates. We don t track you using cookies.

This needs an or circuit. A smoke detector is a device that senses smoke typically as an indicator of fire. We have made three basic logic gate using diode and npn transistor. This video is about.

Summary of the use of the nand gate. Subscribe to our youtube channel to watch more lectures. Here reference voltage selected is 6v fire alarm starts only if the input voltage is less than 6v to increase the reference voltage decrease the resistance of pot.