How do devices and microcircuits work?

Question

Electronics

Good day to all. I have been interested in such things for a long time: how microcircuits work, how to solder your own? For example, you can make a portable speaker with a choice of songs, etc. Maybe there are home 3D printers for creating circuits ... or how they make small cheap mp3 players, hammer their OS into them and how can you work with it? In general, I'm waiting. Thanks

Answer 1

A detailed answer to your questions will not fit in a dozen thick books.
1. Microcircuits (or rather microcontrollers, microcircuits are very different) consist of millions of elementary parts such as transistors, diodes, resistances. These details can be combined into separate blocks, for example, a trigger, a counter, an adder. More complex ones are built from these blocks, and those, in turn, are even more complex. As a result, the microcircuit can process electrical signals according to some program that is stored in its memory. By and large, they are small computers.
2. Making chips at home is almost impossible. However, you can use ready-made ones ( easyelectronics.ru is an excellent site on this topic).
3. To create "smart home" systems, play music, video, almost full-fledged miniature computers, such as Raspbery pi, are usually used. You can also find a lot of information on this topic on google.

Answer 2

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