Learn how to create a simple DIY LED notification light for your smartphone by repurposing an old earphone jack and an LED bulb. This step-by-step tutorial walks you through preparing a 3.5mm jack, ...
LEDs are a wonderful technology. You put in a little bit of power, and you get out a wonderful amount of light. They’re efficient, cheap, and plentiful. We use them for so much! What you might not ...