I am undertaking a project to see what the highest resolution data the EmonPi can achieve. The project is in regards to NILM.
I have an EmonPi, two CT’s and an AC voltage sensor setup
- Get highest possible data points for voltage and current. At the moment I am trying to get data every second on EmonCMS by changing “const int TIME_BETWEEN_READINGS= 5000;” to 1000. But cant seem to see any difference from the 5 second readings on EmonCMS
My next question is can it sample at a higher rate like every ms? I wouldnt necessarily need it to be sent to EmonCMS if I could take the raw CSV file straight itd be fine. I have read Sampling rate of emonLib
- The goal is to try see if I can notice the change between different load types resistive and inductive by doing a fast fourier transform, or differences in active and reactive
Note: I’m not attaching the CT’s to monitor whole household consumption yet just differences between resistive and inductive appliances individually.
Also is there anyway of gathering these readings when not connected to Wifi and sending them to the SD-card?
Any help or advice would be great,