This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level ... I love all about electronics, circuit diagrams and crazy projects that can help us ...

If you are designing your own intelligent “Graden Computer” with an optional digital plant moisture sensor/water pump controller that lights an LED to alert the user when it is time to water a potted ...

With small Arduino boards becoming more popular, Olympia Circuits ... of learning projects, the shield includes the following devices: - Four green LEDs - One RGB LED - One infrared LED - Two ...