I am considering a new project to turn on an electric water heater on my way home from a trip. I have just found that the heater can waste 1kWh/day just to maintain the temperature, which can seriously affect the main project. The inention is to use a surplus Uno and mobile phone, and get a new USB…

Arduino control mains device

Topic		Replies	Views
Relay for arduino Motors, Mechanics, Power and CNC	19	4807	May 6, 2021
how to choose a suitable relay? Interfacing	19	22140	May 6, 2021
Arduino + AC switch Development	7	6182	May 6, 2021
Connet Relay to Control A/C appliances Frequently-Asked Questions	10	9203	May 6, 2021
High Volt, High Current Switching? Interfacing	19	5091	May 6, 2021