Often, the only liquid level indicator you need is your eyes, such as when looking at your cold beverage on a summer’s day. Other times, though, it’s useful to have some kind of indicat… ...

Continue reading “A Simple Liquid Level Indicator With A Single IC” → Posted in classic hacks , Parts Tagged liquid level indicator , transistor , uln2003 , water level indicator Search ...

The simple water level indicator circuit presented here makes this system automatic, i.e. it switches on the pump when the water level in the overhead tank goes low and switches it off as soon as the ...

This simple water level indicator will activate an active buzzer (e.g. BeStar BPT-23CX ) in order to make a noise when a certain level of water is being reached. Because the water sensor and the ...