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The etching is the technique that a strong acid chemical solution "eats" the unprotected copper.

So the etching method can be used for the production of printed circuit boards (PCB) since acid can be used to remove the unwanted copper from a copper clad.
A nice and easy method in order to make printed circuits at home is to use the so called : "toner transfer method". This method will be discussed in another article.
For now keep in mind that you have a copper clad (fr4) with the circuit "printed" (with toner) on it.

So this printed copper board can be etched with an acid solution called etchant.
This acid solution will eat all the unprotected toner and the remained, protected by the toner, copper will be our final printed circuit.

...continue reading "Learn how to make at home an etching solution"

For the first part, click here.

Kicad-PCBnewKicad-PCB-editorOn horizontal bar look at the icon here shown: click to run PCBnew, the embedded PCB editor which to design the circuit mask on.

Editor starts with a black ground.

Kicad-read-netlist
Read NetList

...continue reading "KiCAD. From Software to Hardware Part2"

Kicad-logoWe're talking about one of the most famous, useful and supported software for electronic design automation (EDA).

Other apps or packages are available to do same: Kicad is free (in sense of free software: code is publicly available), and usually at zero-cost, so that you can start with your projects, from simplest to more professional ones, without any other cost.
...continue reading "KiCAD. From Software to Hardware Part1"