IT Technology ~ Network + Hardware + OS + Smart + Web = LiBe.net
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From the network to the operating system to the smart home and your own private cloud.
I like to test new things and share my experiences on this page.
📰 New Posts
The best AntiVirus? Is Windows Defender enough antivirus?
In times before Windows 10, the use of an own AntiVirus program was necessary to run the PC reasonably safe. Initially, Microsoft did not offer a solution here at all, later, in Windows 7, the Microsoft AV could be installed under the name Microsoft Security Essentials and since Windows 8, an anti-virus protection is integrated in Windows, the "Windows Defender". Windows Defender can be found in the settings under"Virus & threat protection". To make it appear that the firewall works in conju... ... continue reading
Maximum PV self-consumption heat pump (2/2)
My heat pump was anything but smart until I married it to an ESP32 microcontroller. Since the marriage, it has been monitored by Home Assistant and controlled via automation. Combined with the performance data of the PV system, Home Assistant is able to use the electricity produced as directly as possible for heating and thus increase self-consumption. ... continue reading
Cura in version 5.7.0 published
I have used 2 different slicers extensively so far: Cura and PrusaSlicer. Both slicers are free, both deliver usable results with the manufacturer's default settings, both have their strengths and hardly any weaknesses. ... continue reading
Energy dashboard: example Fronius Gen24 & BYD storage
The Home Assistant Energy Dashboard shows all relevant energy data in a complete overview. Performance data from a wide range of manufacturers or components can be used as the basis for the dashboard. Only sensors with the corresponding performance data are required to supply the interface with data. ... continue reading
OpenDTU - ESP32 - Hoymiles inverter
As already mentioned in an earlier article, I have replaced the Deye-SUN800 inverter with a Hoymiles HMS-2000-4T. The HMS-2000-4T does not have a WLAN module, so access is only possible via its own DTU (Data Transfer Unit). The DTU is a kind of bridge between WLAN and the inverter's sub-1G radio. In addition to the manufacturer's DTU, there are 2 open source projects for a DIY DTU: AhoyDTU and OpenDTU. The hardware basis of the projects is an ESP32 and an additional radio module. Depending on th... ... continue reading
Hoymiles HMS, best balcony power plant inverter?
I originally used a Deye Sun 800 inverter for my balcony power plant and replaced it with a Hoymiles HMS-2000-4T. The HMS-2000-4T supports up to 4 PV panels and can limit the output to 600 or 800 watts, making it suitable for use as a balcony power plant, among other things. As described in the article "Deye PV balcony power plant: commissioning and HA integration", I have increased the output of my balcony power plant by using 4 panels instead of 2 PV panels, which is not ideal, especially... ... continue reading
Home Assistant snow detection PV system
In a PV system, the voltage increases with the number of PV modules, even in poor lighting conditions. This is different if certain modules are partially or completely covered in snow. I have taken advantage of this fact and created a snow detection function in Home Assistant. Why? To correct the PV forecast for the next day and adjust the heating control accordingly. ... continue reading
Hot water preparation: electricity vs. heat pump
Solutions for hot water preparation are often offered in combination with PV systems. The hot water is usually heated using a heating rod, i.e. purely electrically. The use of a heat pump would be much more efficient. To illustrate the difference, I have put together a small online calculator: ... continue reading
Home Assistant Automatisierung: Update zu 2024.1
From controlling the pool pump to the heating to the robotic mower, automations in Home Assistant offer a way to make things around your home really smart. ... continue reading
Convert date: Unix Timestamp
Online tool to convert a Unix timestamp to a date or date to Unix timestamp. The Unix timestamp counts the elapsed seconds since January 1st, 1970, 0:00. ... continue reading
HA history: more than 10 days? Long Time Statistic (LTS)
By default, the history in Home Assistant shows the status changes of the last 10 days and supplements older data for certain entities from the Long Time Statistic (LTS). In this article you will find out which entities these are and how the data is stored in the Home Assistant. ... continue reading
Deye SUN600/800 - Read out password
Thanks to a security hole, the password of the Deye SUN inverters can be easily read out with a small tool from Github ... continue reading
📁 Topics
Smart Home
Retrofitting your existing home with smart home functions is now easier than ever. However, due to the large number of standards and available software components, choosing a suitable system is not so easy. If you are still looking for suitable software for home automation, you should take a look at Home Assistant.
