Learning how to build circuits is a lot of fun and can be very useful for projects around the house or to establish a lucrative career in electrical or electronics engineering. There are many resources available online that are free and help you get started easily. One popular circuit to learn is a timing circuits with the 555 chip because of its versatility in a variety of applications. It implements some very basic but powerful electrical components that, when combined, produces a circuit akin to those used in millions of different types of electronics.
Integrated circuits, or IC chips, are a combination of transistors in a nicely organized DIP (dual inline pin) package with pins that will easily go into a breadboard or PCB (printed circuit board). 556 timer make use of this same convenient technology. Although it is possible to build this circuit manually with individual transistors, there is really no reason considering the low cost of the ICs. However, it can be fun and an excellent learning experience to try to build one manually.
It may all seem a bit intimidating, but you will have a lot of resources at your disposal revolving around 555 timer projects, and the internet is a great place to start. Manufacturers of this IC, like those of all other electronic elements, provide a datasheet that you can download for free as a published document file. The datasheet offers a tremendous amount of very specific information about the electrical element, but you will need to take a look at good examples of complete 555 timer tutorials in order to replicate and understand them fully.
Most novice electronics building enthusiasts wonder what all the hype is about when it comes to LM555 waveform generator, but the fact is, they are not just used for timing. They can be used for a myriad of applications, and they are used in all kinds of electronics. Actually, you probably won’t find one type of modern electronic device in any household that doesn’t incorporate timer circuits with 555 IC but just on a much smaller scale. 555 timer circuits are essential for producing digital logic used in, of course, all digital electronics like your computer, phone, calculator, HD television, etc.
Really to get into electronics design, electrical engineering, or robotics, learning 555 oscillator circuits is a must. You cannot avoid 555 timer operation so you may as well do yourself a favor and begin to understand them early on. Because they are used in very complex electronics does not mean you cannot use them for extremely simple and rudimentary projects.