The new 24 page color catalog features their complete LEDCO product line of high quality LED, neon and incandescent indicator lights. The catalog is an easy-to-use reference for sourcing industry ...

If you’re working with 3.3V or 5V circuits, it’s easy for you to throw on a power or status LED here or there. [Tom Gralewicz] has found himself in a pickle, though, often working on projects with ...

Las Vegas, NV (April 5, 2006) – Dortronics Systems Inc. is showcasing custom designed door entry solutions at this year’s ISCW. Among the many solutions offered is the 7201 Series High Intensity ...

Wilbrecht LEDCO, Inc., announces the CRM series rear mount panel LED indicators, environmentally sealed for use in harsh conditions or outdoor applications. Assembled with daylight readable LEDs, the ...

I needed a simple LED indicator showing that a particular voltage level had been reached—specifically, that a capacitor had charged to a particular potential. I was convinced that there must be a way ...

Recently, I wanted to build a Sleepy-LED Eye as an add-on indicator for a small personal project. My idea is a near-replica of the iconic breathing pattern used for the “sleep” indicator in Apple ...

Recently, Dortronics received a request to design and manufacture an indicator that could be mounted near card readers to clearly indicate when individual doors were open or locked. The problem arose ...

This LED DC voltage indicator circuit is a voltmeter, rather than simply a battery tester. As such it may measure voltages as low as 3V. It utilizes venerable LM741 operational amplifiers applied as ...

There are now numerous "smart" bike helmets available, most of which incorporate remotely operated LED turn indicators. Well, if that's the feature you really want, Blinxi lets you add it to your ...

A fan to remove fumes is a handy thing to have when soldering, even better is a fan furnished with a filter. Better still is a fan that activates only when the iron is in use, turning off when the ...