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A Raspberry Pi Pico Controlled Frequency Shift Audio Oscillator:  A Radio Shack Classics Circuit Remix

A PIR sensor detects objects to allow a Raspberry Pi Pico running MicroPython code to adjust the frequency of a Science Fair electronic oscillator circuit with audio output.

5 days ago by Don Wilcher

Transistor Controlled Switching of an LED Display: A Radio Shack Classics Circuit Remix

Let’s modernize a circuit from a Science Fair 150-in-1 Electronic Project kit using a solderless breadboard, new electronic components, online EDA tools, and an M5Stack Core microcontroller.

July 09, 2023 by Don Wilcher

How to Make Your Umbrella into a Weather Station with a Particle Photon

Want to get to-the-minute, location-specific weather information delivered right to your own Adafruit IO dashboard? It's time to assemble your very own SmartBrella.

December 13, 2018 by Robin Mitchell

Make Your Own Home Brewing Sensor Kit with the Gentleman Maker’s Adafruit IO SmartBrewer

Have a party coming up in the next few weeks that you want to make extra posh? Try making your own extra-special brew with the Gentleman Maker's SmartBrewer! Make sure you have an Adafruit IO account ready to go and your Particle Photon on hand.

December 06, 2018 by Robin Mitchell

Protect Your Personal Castle With the Gentleman Maker’s Photon Trebuchet

In this Gentleman Maker project, we will use Particle Photon boards to power a motion-sensing trebuchet that can fend off all your mischievous intruders.

September 27, 2018 by Robin Mitchell

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

Protect Your Summer Harvest with the Gentleman Maker’s Raspberry Pi and Arduino Dog Corrector

In this episode of the Gentleman Maker, we're using a Raspberry Pi and an Arduino Uno to stave off the onslaught of dogs trying to eat every single plant in our garden.

August 09, 2018 by Robin Mitchell

Hardware Assessment: LightCrafter Evaluation Kit for BeagleBoard Black from Texas Instruments

The Texas Instruments DLPDLCR2000EVM is a demonstration cape designed to plug into a BeagleBone Black (BBB) and provide instant-on projection capabilities using a digital micromirror device and a relatively high-power RGB LED.

July 09, 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

Take a Gander at Wildlife with Your Raspberry Pi: The Gentleman Maker’s Life-Cam!

In this project, we’re using an Arduino Uno and a Raspberry Pi 3 Model B to create an automatic wildlife camera. And, as an added bonus, this camera works at night. Make one of your own to snap photos of local birds, parading pups, or sneaky humans.

June 15, 2018 by Robin Mitchell

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

The Gentleman Maker’s Auto-Apologizer: A Clever, Polite Device for the Everyday Brit

One of the biggest fears many British people face is forgetting to say sorry. This project is designed to automatically apologize when the user bumps into an object.

March 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

Power over Ethernet (PoE) with Microchip’s EoE!

Embrace the power of Power over Ethernet with Microchip's Ethernet of Everything!

January 26, 2018 by Ryan Jones

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

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 Build a Weighing Scale Using a Load Cell and a Microcontroller

In this project, we're making a weighing scale using a C8051 microcontroller development kit, a load cell, and the Simplicity Studio IDE. The measured weight will be displayed on an LCD screen.

October 10, 2017 by Nick Davis

Testing for a Robot’s Collision Detection System with Varying Impact Resistance

We’ll use real collision data to refine the detection algorithm, and even better, we’ll confirm that the system actually works.

September 28, 2017 by Robert Keim