Home Assistant

A complete ESPHome configuration for the Fri3d Camp 2024 badge, so it shows up in Home Assistant with its motion sensor, LEDs, display and battery. Covers the driver choices that were needed.

Keeping the Belgian capacity tariff down with three Marstek Venus E batteries and Home Assistant: how the kwartierpiek is billed, the settings that matter and two traps I nearly fell into.

Getting a second-hand Solar-Log 500 to read my Platinum 3100S solar inverter over RS485 and feed its production into Home Assistant. The wiring polarity and the firmware were the real obstacles.

Turning an ESP32 Cheap Yellow Display into a desk panel with ESPHome that shows the house’s power use and opens the door or garage with a tap. Four gotchas along the way.

Home Assistant sensors for the five-hour and weekly usage limits of my Claude and z.ai coding plans, including reverse-engineering the z.ai API and a dashboard.