UNO pinouts

[rebetli6]

Hey, I did not find pin assignements instead of A5 and A6. UNO has A0-A5 only.
Could you help me please?

#define RS485_DEFAULT_DE_PIN A6
#define RS485_DEFAULT_RE_PIN A5

[tigoe]

I don't think the ArduinoDMX library works on the Uno, though I haven't tested it, sorry. You could test it using any pins you want, presumably, but I think the serial on the Uno won't go to 250Kbaud, Look at the DMXSimple library instead.