By counting the pulses from the output of the sensor, we can easily calculate the water flow rate (in litre/hour – L/hr) using a suitable conversion formula. The Arduino Sketch (code) uses the ...

Here is a design concept for a cheap single point optical liquid sensor that can detect the presence or absence ... a logic-level alert signal in either a filled or empty state. An Arduino Uno ...

When the sensor detects that the moisture content is already below 30%, it sends a signal to the Arduino, which, in turn, activates a water pump to provide hydration to the plant. As soon as the ...

What happens when an engineer builds a smart garden? This Arduino-powered system automates watering while collecting ...