Latest Projects

In this hands-on project, we will update a 1980s version of a one-shot (monostable multivibrator) circuit by giving it a…

In this hands-on project, we will update a 1980s version of a one-shot (monostable multivibrator) circuit by giving it a modern, colorful output while also examining the circuit's operation.

This article presents the design of an unweighted (Z-weighted) audio filter with a flat frequency response from 20 Hz to…

This article presents the design of an unweighted (Z-weighted) audio filter with a flat frequency response from 20 Hz to 20 kHz for the measurement of audio noise.

Let’s modernize a circuit from a Science Fair 150-in-1 Electronic Project kit using a solderless breadboard, new…

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.

This project demonstrates the design and operation of a root-mean-squared (RMS) detector for inclusion in a wideband…

This project demonstrates the design and operation of a root-mean-squared (RMS) detector for inclusion in a wideband voltmeter. The RMS detector is useful for measuring certain signal types, including noise, since it provides an indication of the energy in a signal.

In this project, learn how to use a potentiometer's reading on the M5Stack core to control a servo motor.

In this project, learn how to use a potentiometer's reading on the M5Stack core to control a servo motor.

Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity…

Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity from 1 mV to 100 V, while the ammeter has a selectable current sensitivity of 10 mA to 10 A.

In this project, learn to create a digitally-controlled oscillator or DCO-based audio synthesizer with an Arduino Nano or…

In this project, learn to create a digitally-controlled oscillator or DCO-based audio synthesizer with an Arduino Nano or an Arduino Uno.

Since photoelectric sensing can be achieved with electrical, electromechanical, and electronic components, learn to…

Since photoelectric sensing can be achieved with electrical, electromechanical, and electronic components, learn to build, test, and implement a prototype photoelectric switch using off-the-shelf components with Arduino OpenPLC.

Quadrature networks convert a single input signal into two outputs with a 90-degree phase difference. This article…

Quadrature networks convert a single input signal into two outputs with a 90-degree phase difference. This article explains how to design quadrature networks using all-pass filters.

This project will explain how to develop a system to measure magnetic field emissions at frequencies up to 150 kHz from…

This project will explain how to develop a system to measure magnetic field emissions at frequencies up to 150 kHz from high-current power cables without cutting or disturbing the cable.

We’ll be walking you through creating a robotic subsystem with a voice-activated motor leveraging machine learning (ML)…

We’ll be walking you through creating a robotic subsystem with a voice-activated motor leveraging machine learning (ML) and an Arduino Nano 33 BLE Sense.

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

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

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

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.

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

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

Learn how to use a Microchip module to prototype digital input and digital control peripherals.

Learn how to use a Microchip module to prototype digital input and digital control peripherals.

Learn how to use a Raspberry Pi to make your own posh home automation system!

Learn how to use a Raspberry Pi to make your own posh home automation system!

Never run out of tea again! The Intelli-T uses a weight sensor and a Raspberry Pi to alert you when your tea supply is…

Never run out of tea again! The Intelli-T uses a weight sensor and a Raspberry Pi to alert you when your tea supply is running low.

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

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

For most, the name "Father Christmas" conjures images of toys and gadgets. But for this gentleman maker, the name brings…

For most, the name "Father Christmas" conjures images of toys and gadgets. But for this gentleman maker, the name brings misery. Be sure to stockpile your Arduino, Raspberry Pi, and Particle Photons; it's time to catch Saint Nick red-handed.