I bought the Shelly 3 EM to measure my electricity consumption.Please note that installation may only be carried out by qualified personnel, i.e. an electrician. It takes very little effort to install the Shelly in the meter cabinet. It is mounted on a top-hat rail in the meter or distribution box, requires a 240V connection … Read more
In order to check whether our house was suitable for a heat pump, I needed to know the preheating temperature and set it so that it did not exceed 40°C. I already have an ESP with a 4-channel relay board in the boiler room and had experience with the Dallas temperature sensor. So I connected … Read more
I wanted to create a mobile dashboard that shows the essential elements on the first page and sub-views on which details can then be controlled. The links to the sub-views are at the top of the start page, realized by a horizontal stack card with entity cards. Some of the icons are interactive, the light … Read more
Here is part two of my journey to smart heating control. First of all, I created some helpers: The selection of the scene then controls the heating control sequence.E.g. Tue & Thu in Cologne, then everything goes to day temperature at 6:00am, but Tue & Thu the heating switches to night temperature during office hours … Read more
We have a gas heating system in the basement, a fairly old one. In the living room there was a bimetal thermostat to control it and there were normal thermostats on the radiators. I already had Comet Dect radiator thermostats from my old apartment, which I could control via the Fritzbox. These are replicas of … Read more
They are on everyone’s lips and not exactly cheap, radiator fans. The fans are mounted under a radiator and turn on automatically when the radiator heats up. And they are good too, the energy efficiency is significantly higher, the room warms up faster. But since they are too expensive for me and I need a very small … Read more
I use some of these Comet WiFi thermostats from eurotronic , they are quite cheap. They were also easy to integrate into my old Telekom smart home solution. When I switched to Home Assistant, I found that there was no integration for the thermostats. So I went on a search and found information in several articles on the Internet on … Read more
I have a new toy, seriously, I want to switch some 230V devices in my basement. I got this card for that; the board has four switching relays and especially a 230V power supply on the board. But it’s a little tinkering. If you can’t or don’t want to solder, you should look for another board. The board does … Read more
Anyone who owns a house with several floors knows the problem, the simple Bluetooth devices are no longer recognized over several floors. For me, it’s simple thermometers that I read out via Bluetooth and have integrated into Home Assistant. These thermometers can be obtained for a few euros. With me, the thermometers in the attic were no … Read more
All smart home systems, such as switches, adapter sockets, smart lamps, etc. contain small computers, so-called microcontrollers. Two quite common ones are the two boards ESP32 and ESP8266.These two microcontrollers differ primarily in the built-in CPUs and the wireless capability. An ESP32 has a 2-core CPU, the 8266 only one core, both boards support WiFi, the ESP32 … Read more