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fire alarm circuit using microcontroller 8051

Posted by:
Created at: Monday 19th of November 2012 12:44:45 AM
Last Edited Or Replied at :Monday 19th of November 2012 12:44:45 AM
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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 (sa..................[:=> Show Contents <=:]


Posted by: project report helper
Created at: Wednesday 06th of October 2010 12:54:46 AM
Last Edited Or Replied at :Wednesday 06th of October 2010 12:54:46 AM
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ystem to prevent the disasters without human involvement.

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track railway gate controlling using 8051 microcontroller

Posted by: project report helper
Created at: Thursday 30th of September 2010 04:28:28 AM
Last Edited Or Replied at :Tuesday 23rd of April 2013 05:42:01 AM
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the gate is closed and stays closed until the train crosses the gate and reaches sensor2. When sensor2 gets activated motor turns in opposite direc..................[:=> Show Contents <=:]


Posted by: raj03linkers
Created at: Sunday 01st of August 2010 07:50:18 AM
Last Edited Or Replied at :Tuesday 12th of March 2013 04:54:49 AM
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I'm raj ramos a computer engineering student. I just want to ask the details of the project MICROCONTROLLER AVR ATMEGA-8535 BASED SMOKE DETECTOR FOR POLLUTION CHECKING. Can you please send me the circuit diagra..................[:=> Show Contents <=:]

microcontroller based infrared object counter

Posted by: nitinmathur1989
Created at: Saturday 31st of July 2010 09:35:27 PM
Last Edited Or Replied at :Saturday 31st of July 2010 09:35:27 PM
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hi, i am a B. Tech. 4th year student and i want guidance on microcontroller based infrared object counter.
i want to know, its work..................[:=> Show Contents <=:]


Posted by: seminar topics
Created at: Monday 22nd of March 2010 10:59:59 AM
Last Edited Or Replied at :Monday 08th of April 2013 03:28:14 AM
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off, when it is not required.
¢ If there is a fault in the circuit, then firstly we should repair it. After repairing it connect again the power supply.
¢ Each component should be checked before checking the project.
¢ Potentiometer should be adjusted at proper range.
¢ Battery of the testing equipment should be properly checked otherwise it will not measure the actual reading.
¢ The components, which are not doing function properly, should be changed as soon as possible; otherwise, other components may also be damaged by it.
¢ Testing..................[:=> Show Contents <=:]

water level detector using buzzing alarm using microcontroller

Posted by: raju.vishwanath
Created at: Tuesday 16th of February 2010 02:02:03 AM
Last Edited Or Replied at :Friday 04th of February 2011 01:04:34 AM
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I am student from eee dept. I want to do a project on 'water evel detector..................[:=> Show Contents <=:]

avoid railway accidents at unattended railway gates using 8051 microcontroller

Posted by: computer science technology
Created at: Friday 22nd of January 2010 02:43:36 PM
Last Edited Or Replied at :Wednesday 18th of January 2012 10:16:00 PM
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express train and a local train are traveling in opposite directions on the same track; the express train is allowed to travel on the same track and the local train has to switch on to the other track. Two sensors are placed at the either sides of the junction where the track switches. If thereâ„¢s a train approaching from the other side, then another sensor placed along that direction gets activated and will send an interrupt to the controller. The interrupt service routine switches the track. Indicator lights have been provided to avoid collisions. Here the switching operation is perfor..................[:=> Show Contents <=:]

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