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Fire Alarm Circuit Using IC 555 by Biswanath Patro is a document available to read on EtoBox.
What is Fire Alarm Circuit Using IC 555 about?
The document describes a fire alarm circuit project using a 555 timer IC. The circuit uses a heat sensor diode that conducts at temperatures over 70 degrees Celsius, causing a transistor to turn off and triggering the 555 timer to generate an output that sounds an alarm. Multiple heat sensor diodes can be used in parallel and placed in different rooms to detect fires. The fire alarm circuit has applications for safety in places like homes, parks, theaters, hotels, restaurants, boats and ships.
- Author
- Biswanath Patro
- Language
- EN