i have now spend days on getting emoncms to show the flowrate of my cold water. i can get the number of pulses send to me just fine.
In emoncms i multiply that with 0.5 as my meter gives two pulses per liter and then i add the number before i started monitoring. that i log to one feed
but to start with i use the rate of change to make a feed called flow
simple enough for even me.. but it gives a negative number... even with tab closed and no change in the number reported by the emontx board.
a bug or human error?
Submitted by boelle on Tue, 11/06/2013 - 19:02i have now spend days on getting emoncms to show the flowrate of my cold water. i can get the number of pulses send to me just fine.
In emoncms i multiply that with 0.5 as my meter gives two pulses per liter and then i add the number before i started monitoring. that i log to one feed
but to start with i use the rate of change to make a feed called flow
simple enough for even me.. but it gives a negative number... even with tab closed and no change in the number reported by the emontx board.
is this an error on my part or a bug?