Got it!,,, well we thought..
Thnx to Jacques lines of code for the serial watcher actor we manage to read te correct value's.
Never the less did we have to cut the amount of sensors from 8 to 4 and later on even one.
somehow everything worked separately but when we got the patching going the Isadora decided to read ghost values. some didn't, some did. after three days of switching sensors, checking cables and connections we just picked the best we thought we had and kept it with that.
It was a great lesson and practice but it reminded me that stuff mostly fails when systems and logic meet.
Anyhow it didn't work as we'd hoped, but people are very excited and surprised by the fact that they trigger a sequence mapped on paintings.
thnx again for all the help