Each sensor includes a light emitter and a receiver, with most relying on infrared light. In optical proximity sensing, the emitter and receiver are housed in the same unit. An infrared reflectance ...

Controlling how a material absorbs and emits infrared light could pave the way for advances in solar energy harvesting, thermal cloaking devices, and other technologies.

Build a simple LPG gas leakage detector using Arduino and MQ-5 sensor. This beginner-friendly project features buzzer and LED alerts, circuit diagram, and complete Arduino code for home safety.

Depending on your preferences, you may want a rowing machine that’s easy to store or one that has all the bells and whistles. As a fitness expert, I tested a number of rowing machines and ...

Need a safe and smart way to use your phone in the car? These car phone mounts are ideal for hands-free calls, navigation, music streaming, and more.

Keep a watch on your front porch with the best video doorbells for 2025. These products feature smart cameras, so you can check the door from anywhere.

<p>Modern smartphones use proximity sensors for much more than just turning off screens during calls. These advanced sensors, powered by IR emitters and receivers, detect nearby objects like ...

Library and Hookup Guide Arduino Library - Library for reading proximity, ambient light, and IR values. Hookup Guide - Hookup guide for getting started with the SparkFun VCNL4040 Proximity Sensor.

Shrapnel injury is a major cause of death in victims of bomb blast, land mines, and gun fire. Currently, doctors rely on imaging systems to locate the shrapnel before surgery. But, since these images ...

Frustrated by chronic speeding and dangerous sideshows tearing through their neighborhood, residents of an Oakland neighborhood took matters into their own hands — installing DIY speed bumps after ...