I’d like to integrate electricity meter readings into HA over WiFi. I live in Luxembourg and my meter is a Sagemcom T 210-D (so-called “smarty”). It has a P1 port but I’ve read that the Luxembourg version has added cryptography compared to standard version. So far i’ve found the following hardware that provides P1-to-Wifi connectivity:
SlimmeLezer+: seems to work for Luxembourg, but out of stock with no announced availability date
My electric provider (enovos) has a customer portal that shows daily consumption, i was planning to write an integration/script to export data from there.
While i am looking for a way to export (more specifically import to ha) this data, you can check if you can access consumption data on enovos customer portal.
@ogerardin , data i see on enovos portal is usually coming 1 day behind, is it the case for you too?
There are some problems with my proposed approach. Data is availability with a delay (let’s say 24 hours) and home assistant is designed to set data on real time. Not good…
I found a new one, developed specially for luxembourg customers: Smarty+
It seems to send data to a cloud service and then requires a dedicated smartphone app to access the data. Any chance this could be integrated into HA?
By the way, slimmelezer+ is back in stock and it works flawlessly with my Sagemcom T210-D meter in Luxembourg city. Just had to ask Creos for the P1 encryption key and to activate also gas meter readings on the P1 port.
You can then flash esphome onto it. I can also post the esphome yaml file I wrote and flashed onto it if there is interest.
If this is too difficult to build yourself then you can also buy prebuilt esp devices with esphome from here:
I have just received my Slimmelezer, in Luxembourg.
For reference, I am a Léoenergy customer, but they redirected me to Creos to obtain the encryption key (which was super easy: I did it via email, providing my contract number, identity, location and Smarty device number).
I have plugged it and, once the wifi was up, I logged in it and set up my own SSID.
When it’s powered up, it broadcasts a wireless network ‘slimmelezer’.
Be patience as this can take 20 to 40-ish seconds.
Connect to that wireless network with a phone, tablet or laptop.
Once connected, a captive portal will show after some seconds.
There you select your network and fill in the required password if needed.
I have then added ESPHome integration and I could now see it on HA.
I just need to figure out where to put the encryption code, as now I am getting the following message:
“Incomplete or malformed checksum”.
Any hint were should I put it? (I will also dog around and report if I find it).
