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simple touch alarm using ic 555


Posted by:
Created at: Monday 10th of March 2014 05:11:53 PM
Last Edited Or Replied at :Monday 10th of March 2014 05:11:53 PM
simple touch alarm using ic 555 ,
abstract or information regarding simple touch..................[:=> Show Contents <=:]



abstract of touch alarm using ic 555


Posted by:
Created at: Monday 10th of March 2014 07:56:24 AM
Last Edited Or Replied at :Monday 10th of March 2014 07:56:24 AM
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abstract for touch alarm using ic555
bhavana
i need an abstract for touch alarm us..................[:=> Show Contents <=:]



simple touch alarm circuit using ic 555 ppt


Posted by:
Created at: Monday 15th of July 2013 10:20:04 AM
Last Edited Or Replied at :Monday 10th of March 2014 05:09:22 PM
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i want circuit diagram and application of simple touch alaram [/f..................[:=> Show Contents <=:]



MAGIC EYE ALARM


Posted by: seminar class
Created at: Friday 22nd of April 2011 11:27:43 PM
Last Edited Or Replied at :Thursday 20th of June 2013 12:17:18 AM
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Power supply
Speaker
LDR-Light dependent resistor
LDR IC C&R WORKINGS
If The intensity of light is more the resistance of the LDR is less
If The intensity of light is less the resistance of the LDR is more
The heart of the circuit is timer IC555.
which is here acting as oscillator to generate sound whenever shadow is cast on LDR .
Timer 555 is connected to operate in astable mode of operation . Resistors R1, R2 along with capacitor C2 & C3 are required to operate the time properly.
OBSERVATION&ANALYSIS
Electronic eye circuit works as light intensit..................[:=> Show Contents <=:]



CELL PHONE CONTROLLED AUDIOVIDEO MUTE SWITCH


Posted by: seminar class
Created at: Tuesday 15th of March 2011 12:13:49 AM
Last Edited Or Replied at :Wednesday 20th of April 2011 01:46:06 AM
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r-handling capability.
• LM337 is the negative voltage complement to LM317 and the specifications and function are essentially identical, except that the regulator must receive a control voltage and act on an input voltage that are below the ground reference point instead of above it.
..................[:=> Show Contents <=:]



Random Flasher for 8 LEDs Project


Posted by: project topics
Created at: Saturday 03rd of April 2010 10:58:22 AM
Last Edited Or Replied at :Saturday 03rd of April 2010 10:58:22 AM
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r your purpose. Resistors are not required for the LEDs because the 4026 IC limits the current to about 5mA for each one.

Parts Required ¢ resistors: 10k, 47k ¢ 555 timer IC ¢ capacitor: 1µF 16V radial ..................[:=> Show Contents <=:]



timer circuits using latches


Posted by: naveenchinnu
Created at: Tuesday 23rd of March 2010 08:07:21 AM
Last Edited Or Replied at :Saturday 30th of October 2010 02:16:18 AM
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i need a RTL schematic, verilog code for designing timer circuit using lat..................[:=> Show Contents <=:]



liquid level Alarm


Posted by: electronics seminars
Created at: Saturday 09th of January 2010 06:31:42 AM
Last Edited Or Replied at :Saturday 09th of January 2010 06:31:42 AM
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s high. This high voltage enables IC1 and it oscillates to produce low frequencies at pin 3. This low-frequency output enables IC2 and it also oscillates to produce high frequencies. As a result, sound is produced from the speaker. Using preset VR1 you can control the volume of the sound from the speaker. The circuit can be powered from a9V battery or from mains by using a 9Vpower adaptor. Assemble the circuit on a general purpose PCB and enclose in a suitable cabinet. Install two water-level probes using metal strips such that one touches the bottom of the tank and the other touches the maxim..................[:=> Show Contents <=:]



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