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…
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…
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…
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…
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…
Analog Design Deficiencies Hidden Behind Software
It’s risky to use software to try to fix large-scale hardware-design errors, as the catastrophe of the Boeing 737 MAX…
Blog: Expect the Unexpected with Control Systems
The designers never considered what would happen if someone activated the locking mechanism whilst the fridge was already in the…
Dealing with Inaccuracies in Analog Circuits
Analog circuits inherently have some inaccuracies; if these exceed the allowable specification, there are three general strategies to dealing with…
Design a Filter With Spreadsheets
There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t...
Analog Layout Automation
There has been vast progress in digital layout automation, which has made it possible to develop complex digital ICs quickly.…