Latest Digital Signal Processing Projects

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Predicting Battery Degradation with a Trinket M0 and Python Software Algorithms

Learn how to build a setup that will help you predict a battery's performance as it ages using a Trinket M0 and software algorithms.

December 09, 2019 by Aaron Hanson

How to Build an Analog Sensor and Analog Output Using Microchip’s RN487x Bluetooth Module

Learn how to hook up an analog input (potentiometer) and output (LED) using a Microchip BLE module.

October 21, 2019 by Aaron Hanson

How to Design a Precise Inclinometer on a Custom PCB

Learn the design steps for creating your own custom inclinometer PCB.

January 08, 2019 by Mark Hughes

How to Build a Class-D Power Amp

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

A Simple, Compact Power Supply for Analog and Mixed-Signal Systems

This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.

June 18, 2018 by Robert Keim

How to Build Your Own Function Generator Using Analog Devices’ AD9833

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

High-Speed Waveform Generation with an MCU and a DAC

In this article, we’ll evaluate different firmware strategies in our pursuit of maximum-frequency analog signal generation.

December 08, 2017 by Robert Keim

How to Generate a High-Precision Waveform Using a DAC and a Custom PCB

In this article, we’ll develop firmware that will serve as the basis for high-precision, high-speed signal generation.

December 01, 2017 by Robert Keim

How to Protect Your Robot with Automatic Collision Detection

In this article, we’ll develop and test an algorithm for automatically shutting down a robot in response to a collision (or some other violent event).

September 21, 2017 by Robert Keim

How to Use a Robot to Record and Transfer Audio Signals

This article provides detailed information on sampling audio signals and transferring the data to a PC for analysis.

September 15, 2017 by Robert Keim

Incorporating Microphone Functionality into a Robot System

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

How to Build a Tachometer/Speedometer with an Optoelectronic Sensor, a Microcontroller, and a Disc

Learn how to make a tachometer and speedometer using a C8051 microcontroller, an optoelectronic sensor, and a spinning disc.

September 06, 2017 by Nick Davis

Gathering and Analyzing a Robot’s Accelerometer Data

An accelerometer can be a valuable addition to a robotics project. This article will show you one approach to generating and analyzing acceleration data.

September 01, 2017 by Robert Keim

Build Your Own Motion Detection System Using an Accelerometer

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

Maxim Integrated’s Sound Activated NeoPixel Rave Goggles

Be the spectacle at this summer's music festival with these sound activated rave goggles!

July 07, 2017 by Ryan Jones

Add Voice Commands to Your Next Project with Bluetooth LE

This project uses the Alorium Technology XLR8, a Bluetooth LE HID Implementation, and the EasyVR voice recognition module to add voice-activated movements to your next project.

May 17, 2017 by Mark Hughes

An Introductory Project for Software Defined Radio

Learn how to listen to frequencies on the air with nothing more than a USB dongle: first FM radio, then voice signals.

February 02, 2017 by Christi Durham

Build Your Own LED Photography Ring Light

LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own ring light out of LEDs!

January 26, 2017 by Alex Udanis

Building an Infrared Tracker with a PICAXE 14M2 and a Stepper Motor

Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver IC, three phototransistors, and a few other components will do the trick.

January 17, 2017 by Charles R. Hampton

How to Build a Touchless MIDI Controller with Arduino

Learn how to build your own touchless MIDI controller using an Arduino... video and code file included.

November 03, 2016 by Evan Kale