About: http://webisa.webdatacommons.org/77656124

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Everything else I said was a wild guess based on looking at a mega board with its 4 tx/rx pairs.
http://www.w3.org/ns/prov#wasQuotedFrom	arduino.cc