2020-12-31 - EDNA Staff

Readers’ choice: The top 10 articles of 2020

This year, top articles run the gamut from DIYs and design ideas to coding methods, teardowns, and more. Read on…

2020-08-25 - T.K. Hareendran

DIY Laser Virtual Floor Marker

This article presents basic design ideas for laser virtual floor markers using inexpensive and readily available components...

2020-06-16 - Bill Schweber

A great DIY project: Build a non-artifact Kilogram Standard

Now that the standard kilogram artifact has been replaced by a definition based on a reproducible arrangement, there’s a great…

2020-05-28 - Martyn McKinney

Create radio receiver circuits with the LM386 audio amplifier

Use the LM386's undocumented attributes to create simple high performance regenerative receivers.

2020-05-27 - Hesam Moshiri

DIY hand sanitizer/alcohol dispenser, without an Arduino or MCU

In this article, we will build an automatic hand sanitizer dispenser that uses IR sensors to detect the presence of…

2019-06-26 - Max Maxfield

Build Guide for DIY Audio Spectrum Analyzer

In addition to being the epitome of everything that flashing LEDs have to offer, this design is of an aesthetic…

2017-12-27 - Michael Dunn

The Lampshade LEDening: LED project #1

Designing one’s own lighting proves to be a satisfying project.