Latest Fabrication Projects

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Construction of a Guitar Amplifier

This article explains the theory and the construction of the circuit of a 10W practice guitar amplifier.

November 29, 2020 by Teja Sai Marellapudi

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 Design a Super Simple Sensor System for Industrial Monitoring Applications

This article describes an Ethernet-connected subsystem of a larger modular sensor system designed for industrial or smart home sensing and monitoring. We will discuss a custom sensor subsystem developed for this application.

September 12, 2018 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

Hardware Assessment: OPB9000 Reflective Light Sensor from TTElectronics

The OPB9000 is a reflective light sensor from TTElectronics with programmable output and sensitivity levels.

July 27, 2018 by Mark Hughes

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

Hardware Evaluation of a Custom Programmable Wi-Fi Controller: The WiCard

This article explores the schematic design and basic features of a smart programmable wireless controller module I designed: the WiCard.

June 01, 2018 by M. Mahdi K. Kanan

How to Stream Sensor Data from Bosch’s XDK110 Evaluation Board to the MQTT Messaging Service

In this article, we will take a look at the XDK110 rapid prototyping kit, characterize its hardware, explore its software environment, and demonstrate connecting the device to the MQTT messaging service.

April 12, 2018 by Mark Hughes

How to Add Bluetooth 5 to a Project with a GT-tronics BLE5 Module

This article demonstrates a solderless-breadboard compatible carrier-board for a pre-certified BLE4 or BLE5 module made by GT-Tronics. Use it to experiment with your own BLE5 compatible designs.

April 04, 2018 by Mark Hughes

How to Make an IoT Teapot | The Gentleman Maker

No longer will you have to get off the couch or out of your warm bed to get the pot brewed!

February 28, 2018 by Robin Mitchell

Design a Custom Microcontroller Programming and Testing Board

In this article we’ll discuss the design for a custom microcontroller programming/debug/extension PCB and we’ll look at an example project.

February 25, 2018 by Robert Keim

Building a Capacitive Touch Interface with the Texas Instruments MSP430FR2633

The MSP430FR2633 is a low-power microcontroller with multiple GPIOs and capacitive touch pins. This project creates a circuit that supports a custom capacitive touch panel with LED and haptic feedback.

January 12, 2018 by Mark Hughes

The FitByte: How to Make an ATtiny85 Powered Activity Tracking Wearable

This is a protoype of a fitness wearable device designed to vibrate when it detects stagnation.

December 13, 2017 by Demsey Kirkwood

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

Tamper Detection with Differential Inductive Sensing Coils

This article demonstrates the creation of an inductive switch cabinet lock that can detect the movement of a conductive target. The purpose is to create a door that cannot be opened without triggering an alarm.

November 06, 2017 by Mark Hughes

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

Adding an LCD and Keypad to a Tachometer and Speedometer

In part two of the tachometer/speedometer project, we'll add a keypad and LCD for easier user interaction.

September 18, 2017 by Nick Davis

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

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