| This small system based on ESP32 makes it possible to control the water flow of the filtration pump and to trigger an alarm if it is too low...
| This small system based on ESP32 makes it possible to control the water flow of the filtration pump and to trigger an alarm if it is too low...
| The Elektor LoRa Switch has a nice relay board that can easily be used in Wi-Fi networks if you replace the LoRa part by Wi-Fi. You then get...