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

which measures the intensity of light bouncing back from an object as an Arduino drives the LED through all possible colors with PWM signals. The sensor needs to be white balanced before use but ...

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 ...

[hclxing] eagerly picked up an LED ceiling light ... ID is attached to a microwave sensor module. Most of us would probably expect to see a PIR sensor, but this light is motion sensing with ...