7 Segment Counter Circuit

admin April 27, 2011 60 Comments
Seven Segment Counter Display Circuit Description Here is the circuit diagram of a seven segment counter based on the counter IC CD 4033.This circuit can be used in conjunction with various circuits where a counter to display the progress ...
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Voltmeter circuit using LED

admin February 22, 2011 16 Comments
Car Battery Voltmeter Circuit Description This is a very useful circuit which when installed on your car gives the voltage of you car battery in a LED dot display form.The circuit is based on four comparators made of quad...
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Metal Detector Circuit

jacky July 25, 2018 42 Comments
Metal Detector Circuit I always wanted to make a metal detector seeing how cool it was in all Hollywood, Bollywood movies. One thing I realised is; things aren’t as difficult as you think it is. After all, I found...
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Flasher Circuit using NE 555

admin November 16, 2011 30 Comments
Lamp Flasher using NE 555 Description This is the circuit diagram of lamp flasher operated from mains. By this you can flash up to 200 Watt lamps at rates determined by you. IC NE555 is wired as an astable...
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Melody Generator using IC UM66

jacky April 11, 2011 25 Comments
Melody Generator Circuit Description Here is a simple melody generator circuit you can make using an IC.The  UM66 series are CMOS IC’s  designed for using in calling bell, phone and toys. It has a built in ROM programmed for...
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Simple Water Level Indicator

jacky July 21, 2018 271 Comments
Water Level Indicator Description This is the circuit diagram of a simple corrosion free water level indicator for home and industries. In fact, the level of any conductive non-corrosive liquids can be measured using this circuit. The circuit is...
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Automatic LED Emergency Light

admin January 23, 2018 322 Comments
LED Emergency Light We have developed three circuits under Automatic LED Emergency Light. Two of them are designed by Mr. Seetharaman, a very valuable and important contributor of this website. We have listed the circuits here for your ease...
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