Software used to produce this (see topic) picture.

extreme first-timer

It's me! ;D

I just want to know what is the software because this style of visualization is much better to understand imho. I don't plan to use the software as a substitute for real-life, but I don't want to risk my Arduino, so, at least for the firs tests, i'm gonna use a software and study very carefully every part of the scheme to avoid possible damage.

Thank you.

PS: The frietzing wires rendering (poly-shaped) is not only boring, but also very confusing when lots of wires are near. (ihmo)