Follow

Smart meter P1 data port parser is working!

Now the P1 power data shows up in grafana for the house dashboard.

Schematics and source code for interfacing an esp32 running esphome with the Digital Smart Meter P1 port: trmm.net/Smartmeter/

@th Don't those QR codes containt he numbers you've blanked out? And is that thing really a 3-phase meter; 3-phase is rare in the UK in homes.

@penguin42 @th

its fairly normal to get 3 phase to domestic houses on the Continent, and the electric cooker to have the supplies for the hobs, grill and over split across L1, L2 and L3 (a cooker I had installed in my house in 2014 had terminal straps so it could be either used on single or 3 phase connections)

@vfrmedia @penguin42 the meter reports the power on each leg as well, although I haven't mapped out which circuits are on which phase.

@th Oh! Looks like a direct patch onto the board, and not sniffing RF traffic or poking the IR transceiver.

I'm still really new at this; been trying to get telemetry out of my own (GE I-210+, model CL 200) with no success yet.

@th @drwho Curious by this, I just checked "mine" (it's actually not mine, but the distribution company's). It has IEC 62056-21 compatible IR port, but sticking a custom device over it to sniff IR will most likely not be seen as "appropriate" by the company 😕

@th Love these TTGO devices, they are perfect for these kinds of projects. "Hello world" indeed!

Sign in to participate in the conversation
(void *) social site

(void*)