I understand, sorry for being evasive. Let me be more clear/precise.
My goal is to achieve a Blynk server [with node-red for web interface], I am going to use arduino [WeMos D1 mini Pro] and ct sensor on our CNC machines to detect if they are active, or not (as 0-2 amps : idle, 2-50 : working for exemple.).
I found a tutorial on https://learn.openenergymonitor.org/ about CT sensor and I tried to reproduce it with my TT 100-SD. In the datasheets I'm missing the secondary turn so I was clueless how to calculate the turn ratio with this
Isecondary = CTturnsRatio × Iprimary
CTturnsRatio = Turnsprimary / Turnssecondary
than I found on this page Installation and Calibration — OpenEnergyMonitor 0.0.1 documentation how to change the 111.11 default calibration for the EmonLib because when I was mesuring 0.11 amps with my clamp I was mesuring 0.45 with the TT 100-SD.
Maybe it was a wrong burden, or a wrong calibration (as I was using 111.11) or both !
I'll try to apply what you guys told me !
Thanks you!
Also yes, I am from France.