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fire alarm circuit using microcontroller 8051


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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 temper..................[:=> Show Contents <=:]



FLAME DETECTION USING 8051 MICROCONTROLLER


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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application which can perform task of detecting fire and temperature to prevent disasters without continuous human monitoring. The behavior of this system is based on LDR sensor information. It uses LDR and LED which gives input to microcontroller by means of sensing. When the system is powered-on, it detects the Light by using LDR, based on this the microcontroller LED is glowed. Fire-specific signals are digitally processed by the microcontroller FMX5000 UV flame detectors meet the highest sensitivity class1 in accordance with the EN 54-10.The detector w..................[:=> 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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ract


the project designed for single track railway gate controlling using 8051 microcontroller to avoid railway accidents happening at unattended railway gates. This project utilizes two powerful IR transmitters and two receivers; one pair of transmitter and receiver is fixed at side from where the train comes at a level higher than a human being in exact alignment and similarly 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..................[:=> Show Contents <=:]



MICROCONTROLLER AVR ATMEGA-8535 BASED SMOKE DETECTOR FOR POLLUTION CHECKING


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..................[:=> 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 ..................[:=> Show Contents <=:]



MICROCONTROLLER BASED TEMPERATURE CONTROLLER full report


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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w soldering iron should be clean properly before soldering.
¢ The joint should be heated up to required temperature by which, the solder melts and comes around the joint. The joint should not be disturbed before setting the solder. The good joint looks pointed spot.
b.) DURING USING POWER SUPPLY:
¢ switches and fuses should be used in a project circuit.
¢ Earthing is essential in wiring.
¢ We should use insulated wires.
¢ Power supply should be switched off, when it is not required.
¢ If there is a fault in the circuit, then firstly we should repair it. After repairing..................[:=> 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..................[:=> 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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. 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 crosses the gate and reaches aft side sensors. When aft side receiver gets activated motor turns in opposite direction and gate opens and motor stops. Buzzer will immediately sound at the fore side receiver activation and gate will close after 5 seconds, so giving time to drivers to clear gate area in order to avoid trapping between the gates and stop sound after the train has crossed.
The same principle is applied for track switching. Considering a si..................[:=> Show Contents <=:]



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