An RV is somewhat self-sufficient. Your RV has an on-board fresh water supply, as well as holding tanks to capture the gray water from the sinks and black water from the toilet. It’s important for the ...

Here we describe an electronic system that uses a dedicated water-level sensor to switch off the pump motor as soon as the ...

Sometimes we need a non-contact liquid level sensor. There are several ways to build that, but the easiest is to try an optical liquid level sensor. You may already have an idea in mind since you are ...