So after beeing occupied with a lot of other things i can spent some time on the re:farm proyect. A friend and re:farm member left me her flat and to do the watering of here plants. We suggested to use that time usefull and do some humidity sensor testing. The re:farm nano board that includes the new sensor techology will be produced in november. Till that i will try to do it without to get more dates about reactive time and calibration of the system and think about electricity for teh parts.
What i found out at my place is that the reaction time of the sensor is slow and not constat. Slow is not the problem it is even more beautyfull and fits even better to plants . The are not know for beeing the hurry typ of species :)