We talk again of Serialino, our Arduino's clone: this time the printed circuit board (PCB) design is shown.
Here beside you find a screen-shot of the PCB of Serialino, numbered 1.0.
Even from here you should be able to distinguish the areas described in the previous post.
Power supply section on the bottom-left; the communication port and IC Max232 on the top-left; the headers on top and bottom; and finally ATMega with external oscillator, then the switch button and the ICSP pin headers.
Every package of software suite comes with an amount of collateral applications, extensions and/or libraries.
KiCad does the same; but sometimes default components aren't enough for specific goals.
Thanks to KiCad's popularity people around the world spent some of their time to enrich the base: so that you can find useful libraries or scheme directly for free on websites. Here some of them (in my opinion the most important):