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• Oct 18, 2021

  Building an ESP8266 DSMR5 reader for Home Assistant

  For sending statistics about energy usage to my Home Assistant (HA) instance from my smart meter, a Sagemcom XS210 ESMR5 (DSMR5), I’ve been using a P1 cable and a Raspberry Pi Zero (RPi) running ser2net following a blog post by Jean-Paul van Ravensberg. However, the idea of using both a P1 connector cable RJ11 (4-pin) and a RPi Zero seemed somewhat overkill as I had to make a wall mount for it, use an extra power outlet to power the RPi and the RPi is running a full OS for just reading and submitting serial data. Time to move to an ESP8266 solution!

• Mar 30, 2021

  Broadcasting over MQTT with ESP8266

  Using an Raspberry Pi for MQTT broadcasting sometimes is somewhat overpowered, so we’ll look at the option of using a ESP8266 instead, or to be more specific, a NodeMCU V3 (Lolin) development board.

• Mar 26, 2021

  State Listener for Home Assistant

  As I started using Home Assistant (HA) I wanted to explore the options of outputting HA states to physical devices, like a matrix display.

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