https://25120.org/tags/led/ Recent posts in ‘LED’ en-gb Sun, 04 Oct 2020 22:30:25 +0200 https://25120.org/img/rss_brand.png 144 92 https://25120.org/tags/led/ https://25120.org/post/laurelin/ Sun, 04 Oct 2020 22:30:25 +0200 https://25120.org/post/laurelin/ <p>About two years ago, I made a little LED tree as a gift. An extremely simple design with 17 white 0603 LEDs soldered to magnet wire, twisted and bent to make branches, and combined them to a small LED bonsai. Electrically, all LEDs are wired in parallel and connected to 4.5 V via an LDR. This lets the tree react to the ambient brightness and helps it to great battery life.</p>