@startuml
skin plantuml
'skin rose
'!theme vibrant

start
partition init {
:setup serial connection;
:print "ready";
}
while (endlessly every few millisecond)
partition loop {
if (currentSecond < 50 ?) equals (yes) then
:print "good";
else (no)
:print "bad";
endif
}
endwhile
:(this point never reached);
stop
@enduml