Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion and excites a light source in a flash. The “snooper” here is an ordinary passive infrared (PIR) motion ...

the sensor will detect a drop in light intensity and subsequently activate the buzzer. The alarm only stops when you press the push button connected to the Arduino. For this setup, the program ...

Most ambient lights and sensors are designed to generate light ... Arduino-powered Shiftbrite LED ambilight setup takes things a step further by automatically adjusting the color and intensity ...