Hi.
I need to build this circuit, but don't fully understand it's operation.
I do understand that the probes when in contact with water, should activate a load i:e (water pump).
Lets say I power the circuit with 12v, will the 5v relay burn out even though the schematic show's 4.5 to 15v input ?.
Or would I use a 12v relay instead.
Also Can the 12v pump share the same 12v psu that powers the circuit, if the 12v+ to pump is placed on the relay common.
Or should the pump be on a separate power supply ?.
I am also not sure of the orientation of the transistors . I have added on the schematic How I think they should be placed on the
Pcb board.
Thanks in advance for any help offered.
I need to build this circuit, but don't fully understand it's operation.
I do understand that the probes when in contact with water, should activate a load i:e (water pump).
Lets say I power the circuit with 12v, will the 5v relay burn out even though the schematic show's 4.5 to 15v input ?.
Or would I use a 12v relay instead.
Also Can the 12v pump share the same 12v psu that powers the circuit, if the 12v+ to pump is placed on the relay common.
Or should the pump be on a separate power supply ?.
I am also not sure of the orientation of the transistors . I have added on the schematic How I think they should be placed on the
Pcb board.
Thanks in advance for any help offered.