Readers’ choice: The top 10 articles of 2020

Article By : EDNA Staff

This year, top articles run the gamut from DIYs and design ideas to coding methods, teardowns, and more. Read on for the top 10 articles of 2020 as determined by readership...

We continue our annual look back at the year’s most-read articles. This year, top articles run the gamut from DIYs and design ideas to coding methods, teardowns, and more. Read on for the top 10 articles of 2020 as determined by readership. If one of your favorites is missing, please add your top article in the comments below!

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

We will build an automatic hand sanitizer dispenser that uses IR sensors to detect the presence of a hand and activates a pump to pour the liquid on the hand…

Create radio receiver circuits with the LM386 audio amplifier

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

Teardown: What makes the Amazon Fire TV Stick?

Cracking open the Apple Fire TV Stick is easy, but identifying all the components is a different story…

Common op-amp circuits

These common op-amp circuits are useful for amplifying various analog signals. The ideal op amp model helps us understand how these circuits operate…

Teardown: DJI Spark drone

The DJI Spark drone was one of the most anticipated drones ever, and for good reason. An EDN teardown gives a glimpse at how it was done…

Measure phase difference with an oscilloscope

Phase difference can be measured on an oscilloscope by determining the time delay between two waveforms along with their period.

Teardown: A smartwatch with an athletic tradition

How well does longstanding location-based and activity-logging watch manufacturer Garmin evolve its products into the broader smartwatch market? The teardown tells the tale.