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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 :Saturday 01st of November 2014 05:56:38 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 (say 50deg) the buzzer starts to buzz..please help urg..................[:=> 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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ring, large industrial plants, airplane and helicopter hangers, fuel stores, pump stations, magnesium dry treatment(milling), wood product industry and so on By using this system we can automate the system to prevent the disasters without hum..................[:=> Show Contents <=:]

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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d till the train reaches the sensor2.Then the gate opens & a green light glows as an indication for the motor drivers to cross the gate without the fear of train accidents...................[:=> 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 stu..................[:=> 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 working and circui..................[:=> 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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mentation of the project.
In this project the ambient temperature will be displayed on a LCD. An 89s52 Microcontroller will be used for handling all the required computations and control.
In following we have briefly discussed details of a Microcontroller and the project in general. A temperature sensor DS 1820 is used for sensing the ambient temperature. The system will get the temperature from the IC and it will display the temperature over the seven segment display and this temperature was compared with the value stored by the user and if the Room temperature goes beyond the Preset tempe..................[:=> 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 using buzzing alarm to indicate the reaching of water level upto the mark' using microcontroller. please provide me the descrip..................[:=> 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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larly the other pair is fixed at down side of the train direction. Sensor activation time is so adjusted by calculating the time taken at a certain speed to cross at least one compartment of standard minimum size of the Indian railway. We have considered 5 seconds for this project. Sensors are fixed at 1km on both sides of the gate. We call the sensor along the train direction as Ëœforeside sensorâ„¢ and the other as Ëœaft side sensorâ„¢. When foreside receiver gets activated, the gate motor is turned on in one direction and the gate is closed and stays closed until the train cross..................[:=> Show Contents <=:]

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