of the Arduino. Here is the test code that indicates the soil wet/dry conditions using just two LEDs (green & red). int GLED= 13; // Wet Indicator at Digital PIN D13 int RLED= 12; // Dry Indicator at ...

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. It uses Arduino Duemilanove microcontroller board. Two wires placed in the soil pot ...

Arduino soil moisture sensors are easy to use ... Arduino pulse sensors have a small infrared LED that is placed on a finger to reliably read the pulse of a human, providing an analog output ...

[electron_plumber] made an LED that can be blown out like a candle, and amazingly it requires no added sensors. The project uses an Arduino to demonstrate turning a tiny LED on and off in ...

so hopefully this Arduino-based system to monitor soil conditions will be of interest. It's the Squirrel Box, from researchers at the Universities of Newcastle and Nottingham. What is a Squirrel Box?

When you need to quantify the color of an object, you’ve got quite a few options. You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy ...