LEDs Design Ideas

Posted on Feb 5, 2014

This slideshow is based on the LEDs Design Ideas Collection, a collection of LED-related reader submitted circuits and design applications that have appeared in EDN`s `Design Ideas` section. Here you can browse through the circuit schematics in that Collection and read a brief description of each, and, if you choose, click through to each origina

LEDs Design Ideas
Click here to download the full size of the above Circuit.

l Design Idea for full details. You can use an LED as a photoelectric sensor. You can adjust the circuit in this Design Idea to any threshold level of light intensity necessary to maintain the on state of the photoelectric switch while retaining almost the same power efficiency of the original circuit. A 5x7 LED matrix allows the display of all ASCII characters, as well as graphics shapes. The circuit in this Design Idea shows an unconventional way to use a 5x7 LED matrix.

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