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…

2020-05-26 - Kendall Castor-Perry

Five things to know about prediction and negative-delay filters

How the heck can you build a filter that ‘predicts’ something? Well, it all depends on how high you set…

2020-05-20 - Nitin Dahad

New MIPI RF front end spec takes 5G beyond mobile

The MIPI Alliance has released version 3.0 of its RF front end (RFFE) specification which will enable more rapid and…

2020-05-12 - Kendall Castor-Perry

Analyze FIR filters using high-school algebra

This article looks at some fundamental facts about FIR filter responses, using some basic math you might even remember from…

2020-05-11 - Brian Dipert

Why the Raspberry Pi 4 should catch your eye

If you’re basing your next system design on the Arm architecture, the Raspberry Pi Foundation’s various boards are an intriguing…

2020-05-08 - Tim Dhuyvetter

Improving haptic feedback with piezoelectric transducers

Introduction to piezoelectric haptics provides the pros and cons of each and details piezoelectric transducer principles, theory, and modelling along…

2020-05-05 - John Dunn

Design vs. manufacturing: A failed directional coupler

How would you react if a sample of your design came back with a major change?

2019-04-19 - Steve Taranovich

Current Sources: Circuitry and Architecture

Now let's look at a two-transistor current source called a Current Mirror. A small sampling of current source circuitry and…