The photosensor is a simple cadmium sulfide cell, which measures the intensity of light bouncing back from an object as an Arduino drives the LED through all possible colors with PWM signals.

An additional IR sensor can be used to detect the current lighting conditions, so that during the day, the lights do not come on and then as the evening sets in, they get a little brighter, only ...

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 ...

We know that measuring the speed of light with an Arduino is possible. It’s just that the implementation is hard. Last month we saw [Udo]’s blinkenlight shield that can be used as a lin… ...

Now that you've seen how to blink your Arduino's LED, we'll use one final, slightly more complex example: we'll use a third-party UNO breakout board and an external traffic light sensor board to ...

Install Arduino-Operated Digital LED Lights for the Holidays. Tori Reid. September 26, 2014 If you like ...

Making use of an ioBridge IO-204 module, an Arduino Wave Kit, ... Check out the final results -- which feature 3,300 mini lights, 3 spotlights, an LED Rope, 4 LEDs, ...