I'm using MCU turn on a relay,then relay turn on solenoid valve.But when valve on 1 times,all things stuck at there.If i remove the valve,and left behind the 240V,everythings work fine.Is than i need to choose a low voltage valve???
brother blueroom,i can say that my circuit no have any problems,because i remove the valve,and test the 240v life cable,it will turn on and off follow by the relay. I can sure that the problems cum from the valve.