Electronics Projects On Breadboard Using 555 Timer IC

A collection of easy to make electronics projects on breadboard using 555 timer IC. Each project includes step by step instructions on how to build the circuit along with explanations of how the circuit works.

List of Electronics Projects on Breadboard Using 555 Timer IC

Fastest Finger First Circuit using 555 IC For Organizing Quizzes

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A tutorial on how to make a fastest finger first circuit which can track the first person to press the trigger or Buzzer. This circuit consists of multiple replicas of a module, each of which can be assigned to a single quiz taker or a team.

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Light Sensor and Darkness Detector Circuit Using LDR + 555 IC

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A tutorial on how to make a light sensor circuit plus darkness detector circuit using 555 timer IC and a few other electronics components. When this circuit is configured as a light sensor circuit, it turns ON the output whenever light around the LDR is more than a certain amount (threshold).

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Model Traffic Lights Circuit Using 555 IC

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A tutorial on how to make a model traffic lights circuit using 2 555 timer IC’s and a few other electronics components. This circuit turns ON green LED, keeps it ON for some time, then turns ON yellow LED for a moment and finally turns ON red LED for almost the same duration as the green LED.

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Police Siren Circuit Using 555 IC

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A tutorial on how to make a police siren circuit using 555 timer IC and a few other electronics components. This circuit smoothly transitions the output sound between two different tones/frequencies, similar to the sound emitted from police cars.

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Police Lights Themed Flashing LED Circuit Using 555 IC

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A tutorial on how to make a Police Lights themed LED Flashing/Blinking LED circuit using 555 timer IC and a few other electronics components. This circuits alternatively flashes between Red LED’s and Blue LED’s while blinking each of them individually similar to police strobe lights.

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Servo Motor Controller and Tester Circuit Using 555 IC

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A tutorial on how to make a servo motor controller & tester circuit using 555 timer IC and a few other components. This circuit allows us to manually drive/control any servo motor by pressing buttons or by turning knob of a potentiometer.

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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 generate continuous ON-OFF pulses which control the speed of DC motors or brightness of LED’s.

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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 increasing intensity for as long as push button is pressed.

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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 to different keys in a piano) which, when pressed, produce sounds with different tones via a speaker.

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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 incident on the LDR/Photocell.

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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 from continuous triggering of a machine gun.

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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 container can be added over the speaker to make it sound similar to the tick tock audio emanated from mechanical clocks.

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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 and OFF at regular intervals of time.

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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 helpful when you need to power On/Off any AC Appliances after a pre-defined duration.

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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 the Piezo-Electric speaker.

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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 when touched by our skin or any object with electric charge, activates the buzzer alarm connected at the output of 555 timer IC.

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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 touch.

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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 produces double the input voltage at the output.

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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 detects light incident on the LDR and turns on LED whenever the intensity of light is greater than a certain level.

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