Latest Projects

In the final installment of our series on the development of the Anthilla Controller, we look at the legal requirements…

In the final installment of our series on the development of the Anthilla Controller, we look at the legal requirements for bringing the project to market in the European Union.

This four-part series walks through the development of the Anthilla Controller, an open-source Internet of Things (IoT)…

This four-part series walks through the development of the Anthilla Controller, an open-source Internet of Things (IoT) hardware platform. In Part 3, we cover the manufacturing, assembly, and product testing of the board.

In this four-part series, we walk through the development of the Anthilla Controller, an open-source Internet of Things…

In this four-part series, we walk through the development of the Anthilla Controller, an open-source Internet of Things (IoT) hardware platform. Part 2 explains the process and requirements of obtaining an open-source hardware certification.

In this four-part series, we walk through the development of the Anthilla Controller, an open-source IoT hardware…

In this four-part series, we walk through the development of the Anthilla Controller, an open-source IoT hardware platform. Part 1 introduces the project's specifications and explains key design decisions.

This project will cover the design, construction, and testing of an analog filter meeting the ITU-R BS.468-4…

This project will cover the design, construction, and testing of an analog filter meeting the ITU-R BS.468-4 specification, which aims to evaluate the disturbing effects of noise on audio broadcast signals.

A PIR sensor detects objects to allow a Raspberry Pi Pico running MicroPython code to adjust the frequency of a Science…

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.

In this project, we design an A-weighted analog noise filter for audio frequencies. The filter provides a variable…

In this project, we design an A-weighted analog noise filter for audio frequencies. The filter provides a variable frequency gain response that is similar to that of our hearing.

In this project we create an 8-bit arithmetic logic unit (ALU) in the VHDL language and run it on an Altera CPLD…

In this project we create an 8-bit arithmetic logic unit (ALU) in the VHDL language and run it on an Altera CPLD development board connected to a custom PCB with input switches and LED display.

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.