| Here’s a non-invasive, all electronic add-on to display the running speed (rpm) of your lathe or milling machine, be it CNC or vintage. It’s...
| Here’s a non-invasive, all electronic add-on to display the running speed (rpm) of your lathe or milling machine, be it CNC or vintage. It’s...
| Although the technology has been around for a while, RGB LED lamps are still state of the art for interior lighting. Traditional incandescen...
| A simple circuit to create a moving dot display from a voltage similar to an LM3914 but with a programmable voltage divider so it is not lim...
| A simple circuit to create a moving dot display from a voltage similar to an LM3914 but with a programmable voltage divider so it is not lim...
| (from henrip4)Adjustable DC current source (130287-I) revisitedThis simple tool can help to sort or select through-hole LEDs, by visually co...
| (from henrip4)Adjustable DC current source (130287-I) revisitedThis simple tool can help to sort or select through-hole LEDs, by visually co...
| LET'S MAKE! (a deal)During April 2014, all members posting projects in Elektor.LABS will receive a "Fun with LEDs" book for free.
| What’s an engineer to do when out on the weekly shop they pass by the Bargain Bin filled with a stash of LED tubes which replace conventiona...
| I like using solderless breadboards, except when you have to build the same circuit element for the umpteenth time—for example, a 5-V supply...
| [Deutsche Version weiter unten!]