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Title: Simple Fire Alarm Circuit
Page Link: Simple Fire Alarm Circuit -
Posted By: smart paper boy
Created at: Saturday 18th of June 2011 07:23:09 PM
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Simple Fire Alarm Circuit
Here is a simple fire alarm circuit based on a LDR and lamp pair for sensing the fire.The alarm works by sensing the smoke produced during fire.The circuit produces an audible alarm when the fire breaks out with smoke.
When there is no smoke the light from the bulb will be directly falling on the LDR.The LDR resistance will be low and so the voltage across it (below .6V).The transistor will be OFF and nothing happens.When there is sufficient smoke to mask the light from falling on LDR, the ....etc
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Title: advantages and disadvantages of fire alarm circuit using LDR
Page Link: advantages and disadvantages of fire alarm circuit using LDR -
Posted By:
Created at: Saturday 07th of October 2017 03:05:36 PM
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Advantages and disadvantages of fire alarm circuit using LDR ....etc
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Title: fire alarm circuit doc
Page Link: fire alarm circuit doc -
Posted By:
Created at: Tuesday 20th of November 2012 08:02:44 PM
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i need a report on fire alarm circuit using ic555
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Title: simple touch alarm circuit
Page Link: simple touch alarm circuit -
Posted By:
Created at: Wednesday 25th of March 2015 10:58:54 PM
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Title: ppt on fire alarm using thermistor circuit
Page Link: ppt on fire alarm using thermistor circuit -
Posted By:
Created at: Wednesday 09th of January 2013 06:32:22 PM
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i want a doucument about fire alarm using thermester which gives me all information about this project. ....etc
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Title: circuit diagram of fire alarm using microcontroller 8051
Page Link: circuit diagram of fire alarm using microcontroller 8051 -
Posted By: [email protected]
Created at: Thursday 31st of October 2013 06:51:33 PM
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yea. i am looking for circuit diagram as well as programme in assembly language for 8051 based fire alarm system. ....etc
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Title: fire alarm circuit doc
Page Link: fire alarm circuit doc -
Posted By:
Created at: Thursday 15th of November 2012 04:42:57 PM
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i need a document about the fire alarm circuit using thermister and ic555
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Title: simple touch alarm circuit using ic 555 ppt
Page Link: simple touch alarm circuit using ic 555 ppt -
Posted By:
Created at: Monday 15th of July 2013 11:20:04 PM
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i want circuit diagram and application of simple touch alaram ....etc
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Title: project file content needed for FIRE ALARM CIRCUIT
Page Link: project file content needed for FIRE ALARM CIRCUIT -
Posted By:
Created at: Tuesday 05th of January 2016 07:58:10 AM
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I need to get a project report on simple fire alarm circuit ,since i have just only made it by sawing the circuit diagram and attaching various components according to that simple circuit but i dint have the content for my project file. So if its possible then plz show a project file report of this. ....etc
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Title: fire alarm circuit using microcontroller 8051
Page Link: fire alarm circuit using microcontroller 8051 -
Posted By:
Created at: Monday 19th of November 2012 02:44:45 PM
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I urgently need a fire alarm circuit that detects heat using lm35 sensor(using adc to convert analog to digital) and after the temperature exceeds a said limit (say 50deg) the buzzer starts to buzz..please help urgently!!!! ....etc
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