As the Ohme integration is awaiting review and looks to be losing the CT reading, I’m looking at alternatives.
Is there an off the shelf device with CT clamp connected via matter over thread?
If not is this doable by DIY - ??ESP - have not ventured down this route yet…
Not sure what errors you are encountering ‘losing CT readings’ with a known setup you already have, or are you just asking what options are out there because you have read there are problems being encountered by others, and you hope that finding a device with Matter/Thread functionality may be the magic solution?
Collecting the data reliably is critical (the CT sensor is but one way of measurement - there are many others). So is getting it into HomeAssistant (the Thread layer). Having a robust and flexible solution via an addon may be the other goal you may wish to contemplate. They all have to come together to solve your requirement
What is your bigger picture? What is your objective?
Hi
The Ohme app seems to have had a breaking change due to vendor introducing a Firebase App Check
This means the advanced settings eg CT clamp reading will probably not be available when it gets repaired via PR156764
But the CT reading is useful to me so I began looking at options.
My EV charger is connected upstream from my power gateway - so the gateway’s internal CT’s do not pick it up. (and cant be moved to the meter tails)
My IHD doesn’t have a HA integration - which would then allow me to calculate a surrogate EV charger current based on the discrepancy between my Gateway’s CT reading and the IHD reading.
I am aware that I could simply buy a zigbee based CT monitor.
However, I am moving towards a thread based IOT - and away from my few older zigbee devices.
I have a fair number of Matter over thread devices running stably on my network.
I am interested to learn and experiment if there is not an off the shelf Matter over Thread ready made device to monitor a CT.
So far I have:
ESP32-H2 DevKitM-1
ATM90E26 on a breakout board
An SCT-013 CT clamp
am I heading in the right direction?
As far as I can find, there is no Matter-over-Thread option for clamp-style power monitoring (yet). Looking at the Espressif Zero Code builder for esp32, I don’t see an option to make your own Matter-over-Thread clamp sensor either. That leaves you with installing Esphome on your esp32-h2, which can use Thread networking, but it won’t speak Matter for control, it will use native Esphome API (using IPv6/Thread instead of WiFi) so you are limited to just HA support. You can review the docs and other online tutorials for configuring clamp monitoring on esp32.
That’s really helpful thanks.
I’m not too bothered about matter - I’m just keen that it runs over my thread network - as long as it will connect to my existing network from my skyconnect border router.
As long as it’s feasible with these components, I’ll build it then have a read of how to actually make it work.