Someone could tell me how I could monitor my water tank with reed switches?
I already have them installed as Contacts on OH, but they are three sensors, and I want to put them all together in only one item. How could I do this?
This picture nor is your description anywhere near detailed enough to answer your question. How do these switches work together? It isn’t even clear where on that diagram the sensors are located. There is a total of 6 possible combinations of OPEN/CLOSED with three reed sensors but you provide no information about what the six possible combinations actually mean?
So the best we can provide is the general:
create a proxy Item to represent the tank
create a Contact Item for each sensor
create Rules to calculate and populate your proxy Item that triggers whenever any of the three sensors changes and publishes whatever that particular combination of sensors represents to the proxy Item.
I Want to show three levels on OH (Full, Medium, Low).
Each reed switch will represent a level.
If the first is CLOSED, it means that I have 25% of Water on my Tank. If the the first and the second sensor is CLOSED too, it means that I have 50% of Water, and If the three reed switches are closed, it means that I have 75% of water on my tank.