https://www.luisllamas.es/protocolos-de-comunicacion-para-iot/ \\ 

https://en.wikipedia.org/wiki/NMEA_0183  protocolo serial ASCII con
[[https://en.wikipedia.org/wiki/Longitudinal_redundancy_check|LRC (Longitudinal_redundancy_check)]] \\
https://www.luisllamas.es/arduino-checksum/ \\ 


Controlar y automatizar la casa con software y hardware libre.


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LaunchPad  https://launchpad.net/ \\ 

SourceForge  http://sourceforge.com/ \\