Here is another interesting hobby circuit built around the popular and inexpensive 555 IC. It is nothing but a water sensor, which you can be configured as a rain alarm, water tank overflow alarm, ...

Posted in Microcontrollers, Wireless Hacks Tagged antenna, cat5, electrode, module, PVC, sensor, trough, water sensor, wireless, xbee ← An Adventure Into Android Makes The VIC-20 Speak ...

As the top sensor goes low (water above level C), the CLR signal is activated and the output of the flipflop is low. This allows Q1 to turn on and activate a triac or relay for the pump.

As an example, if you have a Samsung SmartThings Water Leak Sensor, you would download the SmartThings app. After installing the app, follow the prompts to configure your new leak detector.

A new self-powered water sensor uses wave energy to monitor pollutants like heavy metals, microplastics, and pesticides—no battery needed. Subscribe to our newsletter for the latest sci-tech ...

If the plant is deprived of water, however, the opening time increases to an average of 25 minutes, while the closing time is reduced to 45 minutes. That's where the sensor comes in.

Currently, most pool owners must periodically use testing kits to manually check the water. The process is prone to human error, however, plus owners may forget to perform the tests, or simply not ...

Researchers have developed a new optical sensor that provides a simple way to achieve real-time detection of extremely low levels of arsenic in water. The technology could enable household testing ...