Actually, i answered my own question.
I was trying to use the [arduino] object but it seems thatpd-extended 0.43.3 doesn't include a [flatspace/comport]object that is included in Hans' [arduino] version_0.5beta8.is there an object that could be used to replace the [flatspace] usein the [arduino]? is seems to be the only object printing an error to theconsole.ORis there a newer version of the arduino object that is compatible withpd-extended 0.43.3?either would solve the issue. i suppose i could try to use pd-extended 0.42.5but it would still need to be solved for 0.43