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

@penguin42 @th
don't trust things that can be hacked.

@th 👏 👏 👏 👏 👏