@ellipsis Making progress on this, but I should have asked where is the best document or link for installation of Denky 4 with Raspberry Pi? I see many fragments on various sites, but cannot find an up to date document. English or French are fine for me.
Thanks again

@Charles My misunderstanding. Will pursue Tasmota/MQTT option. Thanks very much for your help here!
Tony

@Charles Hellon again. I received and connected a Denky D4 unit to my pi4 and 3-phase meter (flashing blue LED, so I assume correctly).
I'm struggling to make the software connections work. I think this is because I have not found the correct instructions document for installation, so I'm blundering around somewhat.

Current symptom: cannot see tty connection with picocom.

Serial port is enabled, serial console disabled, cmdline.txt is as follows:
console=tty1 root=PARTUUID=252dbefd-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles

dmesg seems fine:
[ 2.577377] usb 1-1.4: New USB device found, idVendor=1a86, idProduct=55d4, bcdDevice= 4.43
[ 2.577414] usb 1-1.4: New USB device strings: Mfr=0, Product=2, SerialNumber=3
[ 2.577435] usb 1-1.4: Product: USB Single Serial
[ 2.577453] usb 1-1.4: SerialNumber: 54AD000834

Thanks for any help

@Charles Thanks for confirming - will order asap.

FYI, there is a broken link you may want to fix... https://github.com/hallard/LibTeleinfo/blob/master/examples/Raspberry_JSON/Raspberry_JSON.ino

Thanks!

Hi Charles (better to write in my native language, I guess)

I have 2 Linky in different properties in France, one 3-phase, one sigle phase. I have some capabilities in Raspberry Pi/Python/MQTT, and today I use clamps to measure electricity consumption. I want to move to Teleinfo for this data
I think I want to buy 2x Denky, but I wanted to confirm this option, if I may.
I assume I will set up each using the default software, and then examine development options to (in parallel?) send the data via MQTT to my own RPi4 Pi server.
Questions:

1. Deoes this make sense? Any suggestions?
2. I've looked around and not found any details for the physical connection to the Linky units. I see the USB (and wire connectors) on the LInkys, but I'd quite like authoritative details. Can you point me to a source for this install info?

Thanks for any/all help!