https://www.tinkercad.com/things/8YYy0sQM6cC
Multiple led https://www.tinkercad.com/things/ihxNGBzfmHo
References:
[1] Beginning C for Arduino http://it-ebooks.info/book/1581/
[2] Alternative IDE fritzing http://fritzing.org
Software Developer, Programming, Web resources and entertaiment. Desarrollo de software, programación, recursos web y entretenimiento.
[1] extract endpoints/URLs https://github.com/s0md3v/Diggy/tree/master [2] alternative to nmap https://github.com/s0md3v/Smap