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
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 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