NE555

The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The 555 can be used to provide time delays, as an oscillator, and as a flip-flop element. Derivatives provide two (556) or four (558) timing circuits in one package. Introduced in 1972 by Signetics, the 555 is still in widespread use due to its low price, ease of use, and stability. It is now made by many companies in the original bipolar and in low-power CMOS technologies. As of 2003, it was estimated that 1 billion units were manufactured every year. The 555 is the most popular integrated circuit ever manufactured.

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Heart Shape LED Lamp

“This is my first instructables project. you can join with mw to do more amazing project like this. In this project, we make a simple LED heart shaped flasher circuit using NE555 timer IC. This is simple LED flasher circuit …

Water Level Indicator With Temporary Alarm & Water Flow Sensor

“There are many countries and people who depend on the water tank to get the water for their home as I am. In the lockdown, my dad keeps climbing the stairs to know the water level and to secure our …

LED Juggling Knives

“This project was inspired by one of my friends, who is an avid juggler. He was looking for glow in the dark juggling balls and I wanted to try my hand in building it. As I worked through the design …

Match the Color Game Using 555, 4017 and RGB LED

“I created a circuit in which random colors are picked and where the user must attempt to match the colors as many times as possible for a high score as they blink on and off from left to right at …

LED Chaser Circuits Using IC4017 and Arduino

“A Chaser Circuit consists of a clocked IC or other electronic unit like an Arduino that drives an array of LEDs in such a way that individual LEDs (or small groups of LEDs) turn on and off in a predetermined …

Save Water With Over Flow Alarm

“Water plays an important role in our day-to-day life. Although our mother earth is covered with 71% of the water we have just very little; that is approximately only 1.2% which is available for domestic usage. As we being …

LED Fading Effect / LED Strobe using 555

“In general, generating an LED fade effect requires a microcontroller or another expensive circuit. We have built this low-cost LED fading board using an inexpensive 555 Timer. The 555 timer is used as an astable multivibrator, which generates low-frequency pulses …

Trollduino V1.0

“Response to Hackaday comments section: a 555 timer in Arduino form factor “That’s stupid! Why use an Arduino when you could do the same thing with a 555?” - representitive comment on any Hackaday post that describes any Arduino project …

60W LED Dimmer for 12V LEDs using 555 Timer

“The project shown here is a cheap 60W LED dimmer for 12V LEDs/12V LED strips. The circuit is based on the very popular, versatile, and low-cost 555 timer IC, NE555 IC generates a PWM signal and IRF540 MOSFET works …

Dual Astable 555 Timer

“The 555 which comes in a number of technology variants (Bipolar & CMOS), single, dual elements and different package styles (SMD & DIL), and finds many uses in a variety of applications from timers, pulse generation and oscillators. All of these applications …