Discover how to build a simple device that converts light into electricity using LEDs and diodes. This step-by-step guide ...

Learn how to create a simple DIY LED notification light for your smartphone by repurposing an old earphone jack and an LED ...

Build festive decorations using Arduino and Raspberry Pi with these five creative holiday projects and video tutorials ...

MIDI controllers are easy to come by these days. Many modern keyboards have USB functionality in this regard, and there are ...

Abstract: Common human–computer interaction (HCI) modes rely on various sensors or cameras for operation. This study proposes a gesture recognition method and device based on light sensing ...