On hardware side, you could use ULN2003 chips as drivers. For software, depends on what boards do you have, probably you can make more than 6 analog outputs with some kind of library, but default is 6 (non-mega).
On hardware side, you could use ULN2003 chips as drivers. For software, depends on what boards do you have, probably you can make more than 6 analog outputs with some kind of library, but default is 6 (non-mega).