1) why I need to control the high voltage??
2- I have 2 sources of electricity connected to the arduino : governmental and the generator (but I don't know how to connect them).I need when the governmental electricity goes off the higher 2 currents shown on the LCD goes off and keep the 3rd and after discussion turn the generator on and keep the 3rd device on, and in case the governmental electricity came give it the priority.
I want to measure current for each device and display current from the lcd ways:
2)there is not any relay connectgovernment to arduino and the arduino to generato???
3)you did not say how I can control from lcd.i want to turn off ref. and washer from lcd.