Electronics Projects, Theory and Tutorials

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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DC Voltage Doubler Circuit Using 555 Timer IC

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A tutorial on How to make a DC Voltage Doubler Circuit on breadboard using 555 Timer, Diodes & Capacitors. This circuit takes in a DC voltage anywhere between 5V to 15V and...

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Light Sensor Circuit Using LDR and 555 Timer IC with Adjustable sensitivity

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In this tutorial we’ll learn how to make a light sensor circuit using LDR (Light Dependent Resistor), 555 timer IC and a few other electronics components. This circuit...

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