Anyone starting a **Smart Home project with ESPHome and Home Assistant** today is faced with a massive selection of microcontrollers. Where we once only had “the ESP32,” we now see abbreviations like S3, C6, or C3 on the modules.

In this post, we clarify the differences and which chip you should plan for which project—from voice assistants to battery-powered sensors.

First get an overview in the video: To turn on the tablet via the Home Assistant app, the Notify service of Home Assistant is used, this can be tested with the developer tools from Home Assistant (replace mytablet accordingly) In NodeRED you use the “Call Service” node and select the service “Notify” and the device […]

In the event of a blackout, you can already detect the grid frequency going down. The grid frequency can also be easily determined and thus i build an early warning system, with the help of a WioTerminal (from SeeedStudio), NodeRED, a Raspberry Pi and Telegram – I show you how! If you just want to […]

I created a NodeRED subflow for Reolink cameras with which you can detect humans and cars directly. For example, person detection can be used to switch lights, or send you an image to your phone within milliseconds and you can see directly what’s going on. Something like this is hard to find – you’re welcome! […]

I wanted a smart door lock, so i tried to build it myself with an ESP8266 and a JDY23 Bluetooth LE Module. My journey to meet my expectations was a lot longer than expected, but see for yourself. This project was hard, but i learned a lot! If you want do create your own PCBs, […]

In the last few months I have built a noble version my video doorbell based on the ESP32 camera module. The doorbell can display messages automatically or manually and of course I get a picture on my smartphone when someone rings the bell. To save time on soldering work, I created boards with EasyEDA and […]

There are many ways to access web services that run in our home from the Internet.The worst possibility would be portforwarding and forwarding to a device with an unencrypted protocol such as HTTP or FTP. You should really avoid simple port forwarding on HTTP or FTP.SFTP and / or a VPN would be better. Both […]

This post is for those who are interested in why there is little new content here and why I can no longer help or advise everyone individually. We will also talk through how the DIY Smart Home can become a real community project. I thought for a long time whether I should say something about […]

Has Google short the free online storage again or did Dropbox raise prices? And what exactly happens to your data anyway? Would you prefer to save your data at home, but still have the possibilities of a modern cloud? Then Nextcloud is right for you! Dropbox Plus costs around 10 euros per month and you […]

In this video, I will show you how to use my script to install the software that I use in my smart home system. In order to receive the script, you must register in the ei23.com newsletter . You can find the complete blog post and all the links to the Smart Home here: DIY […]