In the microcontroller era today, Arduino is ... Here an LDR (Light Dependent Resistor) is used to measure the light level. The alarm system is triggered when a “Logic High (H)” level signal is ...

A motion sensor is generally used to turn on ... can also leak water and cause flooding. DIYables LDR For Raspberry Pi And Arduino Light-Dependent Resistors, or LDRs, are resistors whose ...

This voltage can be read by an Arduino digital input and then the Arduino can act upon it. The PIR Motion Sensor on the left is made by Parallax and sold by Radio Shack. The one on the right comes ...

[Gord Payne] has one with an elegant sensor ... reaching the LDR from the LED decreases as the pipe is bent, and with a simple divider circuit a voltage can be read by an Arduino.

It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic switch called a relay, then plug in your fan, and you’re good to go. If that sounds ...

Makers and developers looking for a motion sensor Arduino Shield, are sure to be interested in this new ICU-Duino which has been created by Patrick Thomas Mitchell based in Ottawa, Canada.

The Leap Motion controller is a rather impressive little sensor bar that is capable of ... The actual code being sent to the Arduino is pretty simple. The Leap Motion SDK does all the complex ...

Created by Rabid Prototypes the Arduino development board allows you to easily add light, sound and motion sensors to your creations and is powered by a 48MHz 32-bit ARM Cortex M0+ micro ...

You'll definitely need some gear for it—the Arduino for one, but also a PIR motion sensor, not to mention the (cleaned and rinsed!) Raid Power Sprayer motorized spray bottle. The second trick is ...