Hi, I am using a reed-switch to monitor water levels in a capilary box. The switch trigs an interupt, that block the relevant valve from adding more water. This is working fine, but the data graph behaviour is hard to understand.
While the sensor readings in the log shows "0" for a particular time (ex. 00:10), the graph shows "100%" (1). The value seem to be switching back and forth between 0 and 1 with fixed 10 mins intervals.
I have included a sceenshot of the graph and the log, if someone can help me analyse.
Brgds
Lars
Txs. Angelo, I understand better now and it makes sense. A suggestion could be to add the interrupt level (status) as a separate data entry, that can be added to the graph. That would provide good information on the relation between the input (sensor) and the output (interrupt state).