Top 100+ 555 Timer IC Projects In Electronics

The 555 timer IC is used in a variety of timer, pulse generation, and oscillator applications. It can be used to provide time delays, as oscillators, and as flip-flop elements.

The 555 timer IC is an integral part of electronics projects. Be it a simple 555 timer project involving a single 8-bit micro-controller and some peripherals or a complex one involving system on chips, 555 timer working is involved. Here, we take a look at some 555 timer circuits based on the IC. For the full list of timer-based projects check out 555 timer projects.

Ultrasonic Sound Generator Using 555 Timer

A simple Ultrasonic Sound Generator that can be used for various purposes such as a sound generator, mosquito repeller, and like this. This project uses an astable mode multivibrator with IC 555 which produces the desired frequency by altering the variable resistance.

LED Chaser Using 555 Timer & 4017 Counter

A simple led chaser circuit can be made using 555 timers and CD4017 IC with some simple steps. This circuit can be used in blinking lighting, chaser lighting, and many decorative items. By modifying the circuit with relays you can use this to control lights working on AC electric units.

Darkness Detector Circuit Using 555 Timer IC

I will show you how to make a darkness detector that detects darkness using the cheapest light sensor that is LDR (Light Dependent Resistor). Darkness Detector circuits can be used in applications where the light will be going to off.

Metal Detector Circuit Using 555 Timer

I will show you how to make a simple metal detector circuit using fewer components which is a very essential device that is used for checking persons, luggage, or bags in airports/shopping malls, hotels, etc to ensure that the particular person is not carrying any metals like guns, bombs or any other metallic types of equipment.

DIY Simple IR Sensor Using 555 Timer

The operation of this IR sensor is so simple when an object is in front of the sensor, led will light up. We have two IR LEDs, a transmitter and a receiver. When the current passes through the transmitter led, it will emit IR rays.

Water Level Indicator Alarm With Transistor & 555 Timer

 I will be going to show you a water level indicator using transistors and 555 timer IC. Water tank flow is a typical issue that prompts the wastage of water. In spite of the fact that there are numerous answers for it like ball valves which consequently stop the water stream once the tank gets full.

Ding Dong Calling Bell Circuit Using 555 Timer

These days, the calling bell is basic in each house. We, everyday watch various sorts of calling bell are accessible in the market and they produce various kinds of music relying upon their usefulness. One can structure their own calling bell ringer utilizing simple electronic parts.

555 Timer IC Testing Circuit Working Principle

The 555 Timer IC is one of the most popular and most frequently used integrated circuits. It performs an array of timing tasks in the electronic circuits and there is a huge list of experiments that can be performed with 555 IC. That is why it is very popular for electronics hobbyists.

Motion Detector Using 555 Timer

This circuit is based on a passive infrared (PIR) sensor, which automatically switches on a device when someone comes close to it. It can be used for detection of theft or an unauthorized person entering a restricted area or building. It can also turn on lights when someone approaches the area where it is installed. Applications of this circuit include security systems, corridor lights and bathroom lights among others.

Sequential Timer for DC Motor Control

The sequential timer is a widely used circuit in industrial plants because most industrial processes are chain reaction type. That means as one process ends, it triggers the next.