Motivation As you all know, my home is stuffed with more sensors than the ISS, but I still have some heating installation burning oil... and it stops working quite often…
Reverse Engineering the Buderus KM217
Limiting EV Charge SOC with go-echarger and Home Assistant
How to limit charging to a predefined SOC with go-echarger and Home Assistant if your car does not support this feature.
wmBus Meters And How To Get It Into Home Assistant
Recently, I decided to switch over to Home Assistant due to instability of iobroker. Maybe I had too many adapters, slaves or what else... Somehow it did not function properly…
The Magic Of Absolute Humidity
Introduction When we moved from our flat to our house back in 2015, I soon realized, that the old part of the house (built in the fifties) has some problems…
Taking Your M-Bus To The Next Level… MQTT
Introduction First of all, why would you do this? Many people own an appartment and want to measure the heat, water, electricity flow to the people living there. Others just…
Kathrein EXIP 418 – Getting It Back To Work on Ubiquity Networks
I've installed a Kathrein Sat>IP-Server from Kathrein quite some time ago and it worked more or less flawlessly in the beginning. Also my Sat>IP-Receiver, I bought a few month ago…
Think Sustainable, TH!NK City (reanimated) – Work in Progress
Ever heard about the TH!NK City electric car? No? Before I got asked to help bringing it to life again, I also didn't. In fact, if you do not count…
How to Wire an EV Wall-Box (the economic perspective)
Have you ever planned to install some wall-box for your new electric car? You have some technical/electrical skills but you are not sure, which wire to run from your building…
Angular Web App on ESP32
In progress... TL;DR (take me to the battle field) Introduction and Motivation In some recent project, we added some ESP32 to replace wired communication with a BLE solution. Additionally, the…
ESP32-EVB, PlatformIO And ESP-IDF – Yet Another ESP32 tutorial
I already posted a tutorial on using the ESP32-EVB from olimex with Arduino. This time, I will provide the same with ESP-IDF, the original SDK from Espressif. Why I decided…