Electronics Projects, Theory and Tutorials

LED Dimmer and DC Motor Speed Controller Circuit Using PWM Technique

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A tutorial on how to make a PWM (Pulse Width Modulated) controller circuit for controlling the speed of DC Motors and brightness of LED’s. This circuit uses 555 timer IC to...

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Wailing Siren Circuit Using 555 IC

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A tutorial on how to make a wailing siren circuit using 555 timer IC on a breadboard. This circuit can be triggered by pressing a push button switch and it produces a tone with...

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DIY Electric Piano Circuit using 555 timer IC

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A tutorial on how to make an Electronic Piano circuit using 555 timer IC and a few other electronics components. This circuit consists of a number of push button switches (similar...

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Light Screamer Circuit Using LDR and 555 Timer IC

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A tutorial on how to make a light screamer circuit using LDR (Light Dependent Resistor) and 555 timer IC. This circuit generates a screaming noise depending on the amount of light...

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Machine Gun Sound Generator Circuit Using 555 IC

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A tutorial on how to make a Machine Gun Sound generator circuit using 555 timer IC and a few other electronics components. This circuit simulates sound similar to the audio emitted...

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Tick Tock Sound Generator Circuit using 555 Timer IC

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A tutorial on how to make a ticking sound generator circuit using 555 timer IC. The sound feels similar to the one used when showing a ticking time bomb in movies. A reverb...

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