Tobias Reithmeier

Blog

Topic: Smart Home

8 posts on this topic. · Blog · Archive

25 Automations Later: What Actually Helps in a Smart Home

Motion lights, good-night scene, solar control, fireplace effect: which of 25 automations proved their worth, and which are mere gadgetry.

  • Smart Home

Solar, Storage, Spot Prices: My Smart Home Energy Setup

Solar on three roof faces, three batteries with net-zero balancing, prices from ENTSO-E: how Home Assistant orchestrates car, hot water and heat pump.

  • Smart Home
  • Energy Transition

An Energy Manager That Starts by Just Watching

Energy management as a custom Home Assistant integration: roles instead of entity IDs, an explainable heuristic instead of a solver, observing before acting.

  • Smart Home
  • Energy Transition

What the Heat Pump Reveals When You Ask It Directly

High pressure, superheat, energy per heating degree day: which diagnostic values a Modbus-connected heat pump delivers, what they mean, and the dashboard code.

  • Smart Home
  • Maker
  • Energy Transition

Mapping Unknown Modbus Registers Without Breaking Anything

No datasheet to hand? How to identify the Modbus registers of an unknown device: scanner strategies, an observation mode, and the rule to never write blindly.

  • Maker
  • Smart Home

LG Therma V and Home Assistant: Modbus via ESP32

Connecting an LG Therma V to Home Assistant via Modbus RTU and an ESP32: terminals, DIP switches and the three pitfalls that decide whether any byte flows.

  • Smart Home
  • Maker

Heat Pump Without the Cloud: When the Gateway Died, the ESP32 Arrived

The cloud gateway of my LG Therma V failed and support barely replied. Why the fix was a 35-euro board, and what a heat pump actually does.

  • Smart Home
  • Energy Transition

Smart Home Without the Cloud: Why My Home Runs Locally

1,744 entities, one server in the house, hardly any vendor clouds: a field report on why my smart home runs locally, and where compromises remain.

  • Smart Home
  • Privacy