Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.
August 29, 2018 by Cezar Chirila
Tired of using your PC or mobile phone as a signal generator? It’s time to upgrade to a standalone one by making it yourself.
January 17, 2018 by Cezar Chirila
In this article, we’ll look at a fairly straightforward circuit that enables a robot or other device to detect sound.
September 11, 2017 by Robert Keim
This project uses a C8051 microcontroller development kit, an accelerometer evaluation board, and Simplicity Studio IDE—all from Silicon Labs—to rather quickly and easily build a motion-detecting alarm system.
August 31, 2017 by Nick Davis
In part 2 of the LED saber project, we'll assemble the power and audio systems.
October 19, 2016 by Jeremy Lee
Part Three in this three-article series shows you how to generate values for a discrete sinusoid and continuously convert this data into an analog signal without overburdening the CPU.
May 09, 2016 by Robert Keim
In this article we’ll use the SAM4S Xplained Pro development platform to get some hands-on experience with a PWM DAC.
April 19, 2016 by Robert Keim
This article covers everything you need to know to generate pulse-width-modulated signals with Atmel’s SAM4S Xplained Pro development board.
April 14, 2016 by Robert Keim
Learn how to read electrical signals and data from an analog device using the Step Response technique in Part 5 of the Building Raspberry Pi Controllers series.
February 09, 2016 by Don Wilcher
Part 2 in the “How to Make an EFM8-Based Sound Synthesizer” series.
September 11, 2015 by Robert Keim
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