Typical implementation of indirect current measure is measure voltage of coil around AC cable. In this case the ASD1115 is set to differential measure. This is possible in EspEasy.
However, due to sine wave of measured voltage true RMS calculation needed.
It includes pretty often measure rate ( > 100 per second), taking absolute values of every measure, and some calculations.
I know how to make "calculations" in "Formula" field.
I wonder is there a way to make calculation over hundreds of measure samples?
Is it possible to make math functions like abs(%value%)?
Thank you.
Current measure with diff.input of ADS1115
Moderators: grovkillen, Stuntteam, TD-er
Re: Current measure with diff.input of ADS1115
Nope. You cannot aggregate over multiple historic values.
And the other thing is you cannot measure that fast with the ESPeasy.
There is no guarantee the measurements will be taken at regular intervals when measuring 100's times per second and I doubt the I2C sensor will be fast enough.
And the other thing is you cannot measure that fast with the ESPeasy.
There is no guarantee the measurements will be taken at regular intervals when measuring 100's times per second and I doubt the I2C sensor will be fast enough.
Re: Current measure with diff.input of ADS1115
ADS1115 + ESP8266 can read that fast and even faster but not within the ESPEasy framework.
I've a module that does this function (monitoring AC current) but it runs a custom firmware that I wrote and send out data via MQTT in order to intergrate it in my system
I've a module that does this function (monitoring AC current) but it runs a custom firmware that I wrote and send out data via MQTT in order to intergrate it in my system
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone
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