Electronics Projects, Theory and Tutorials

Adjustable Flashing/Blinking LED Circuit using 555 Timer IC

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A tutorial on how to make an Adjustable Flashing/Blinking LED circuit using 555 timer IC and a few other electronic components. This circuit toggles an LED or any output device ON...

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Adjustable Auto On Off Delay Timer Circuit Using 555 IC

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A tutorial on how to make an adjustable delay timer circuit using 555 IC that can automatically turn on/off any output after a fixed duration. This electronic timer circuit is...

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Piezo Electric Knock On-Off Sensor Switch Circuit Using 555 Timer IC

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A tutorial on how to make a Tap On Tap Off piezoelectric knock sensor circuit using 555 timer IC on a breadboard. This circuit toggles (flip-flops) the output each time we tap on...

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Latching Touch Sensitive Alarm Circuit Using 555 Timer IC

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A tutorial on how to make a touch sensor alarm circuit using 555 timer IC on a breadboard. It consists of a touch sensor (made up of conductive material like copper wire) which...

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Touch On-Off Sensor Switch Circuit Using 555 Timer IC

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A tutorial on how to make a Touch On and Touch Off sensor switch using 555 timer IC on a breadboard. This circuit uses two pairs of touch conductors to sense and register the...

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LED Roulette Circuit using 555 Timer & 4017 IC

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A tutorial on how to make an LED roulette circuit using 555 timer & 4017 IC on a breadboard. This circuit replicates the functioning of circular roulette wheel. Circuit...

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