Have you ever heard of the NE555 integrated circuit? On this page I will show you 2 projects you can build with this chip.
The NE555 is one of the most famous integrated circuits in electronics. You could almost call it a classic.
Because of its versatility and ease of use, this component has become a core building block in a wide range of electronic devices, from timers to oscillators and pulse generators.
Table of contents
One of the most important features of the NE555 is its ability to generate precise timing signals. It can produce intervals ranging from microseconds to hours, which makes it ideal for a huge range of projects such as control systems and automatic switching circuits.
Another major advantage is ease of use. With just a few external components, you can use this integrated circuit in almost any project. That makes it a great option both for people who enjoy electronics and for more advanced builds.
Because of all this, the NE555 is an essential tool in the kit of any electronics enthusiast or professional. Its versatility, ease of use and availability make it an outstanding option for many different kinds of projects.
Materials
The parts used in this project are very simple. Even so, if you are missing any of them, here is an Amazon link where you can buy them without any problem. They are the ones I use.





Project 1: Adjustable blinking LED with NE555
One of the most common projects for understanding how this integrated circuit works is to change the blink frequency of an LED with a potentiometer, making it flash faster or slower depending on the variable resistance.
The required components are very simple. I am sure most of you already have them at home.
Here is a video tutorial where I assemble it and show it working.
[EMBEDDED YOUTUBE VIDEO WITH THE TIMESTAMP WHERE THE PROJECT APPEARS]
And, of course, here is a circuit schematic with all the details so you can build it without problems. Even so, if it does not work for any reason, leave me a comment and I will try to help.

Project 2: Electronic metronome with NE555
Another very interesting project you can build with this integrated circuit is an electronic metronome to keep time while playing an instrument.
I also added 2 LEDs so that it does not only make a sound, but also marks the beat visually. The parts are just as simple as in the previous project. Any Arduino kit includes everything you need.
Here is a video tutorial where I assemble it and show it working.
[EMBEDDED YOUTUBE VIDEO WITH THE TIMESTAMP WHERE THE PROJECT APPEARS]
And, of course, here is a circuit schematic with all the details so you can build it without problems. Even so, if it does not work for any reason, leave me a comment and I will try to help.

If you follow the steps in the video and the schematic above, it should work as shown. If you have any questions or suggestions, leave them in the comments on this page and I will reply as soon as possible.
