Latest Projects

Build a low-noise, 32-bit delta-sigma ADC board designed around the ADS1262. This 10-channel design features integrated…

Build a low-noise, 32-bit delta-sigma ADC board designed around the ADS1262. This 10-channel design features integrated signal conditioning for RTDs, thermocouples, and strain gauges.

Build an ultra-low-noise preamplifier with a JFE150 JFET and OPA202 op-amp, perfect for high-impedance sensors,…

Build an ultra-low-noise preamplifier with a JFE150 JFET and OPA202 op-amp, perfect for high-impedance sensors, hydrophones, guitar pickups, microphones, and turntables.

This project brief describes how to build and use a four-channel differential line receiver module for balanced RS-422…

This project brief describes how to build and use a four-channel differential line receiver module for balanced RS-422 and RS-485 data links.

This project brief describes how to implement a four-channel differential line driver module for reliable long-distance…

This project brief describes how to implement a four-channel differential line driver module for reliable long-distance data transmission over balanced twisted-pair lines.

This project brief describes how to build a wide-range DC-DC buck converter capable of delivering a regulated 5.0 or 3.3…

This project brief describes how to build a wide-range DC-DC buck converter capable of delivering a regulated 5.0 or 3.3 V output from input voltages ranging from 7 to 60 V.

This project brief describes how to assemble an isolated half-bridge IGBT gate driver module built around the…

This project brief describes how to assemble an isolated half-bridge IGBT gate driver module built around the NCD57085DR2G. It features onboard current sensing and overcurrent protection.

This project brief explains how to construct a PCB-based audio-processing platform with an ATmega328 microcontroller. A…

This project brief explains how to construct a PCB-based audio-processing platform with an ATmega328 microcontroller. A link to Arduino code for creating an audio echo is also provided.

This project brief provides the instructions for building a weight-sensitive LED lamp with an Arduino Uno and a handful…

This project brief provides the instructions for building a weight-sensitive LED lamp with an Arduino Uno and a handful of commercially available parts.

In this project, we'll construct and test a microcontroller-based system that digitally generates analog signals.

In this project, we'll construct and test a microcontroller-based system that digitally generates analog signals.

Learn how to create a batteryless crawling robot using basic electronic components and a 3D-printed chassis.

Learn how to create a batteryless crawling robot using basic electronic components and a 3D-printed chassis.

To complete this project, we add backlight control and temperature-sensing functionality to the clock we built in the…

To complete this project, we add backlight control and temperature-sensing functionality to the clock we built in the previous installments.

We continue our design of a clock that uses analog ammeters to display time and temperature. In this installment, we…

We continue our design of a clock that uses analog ammeters to display time and temperature. In this installment, we examine the second of the two circuits that enable the timekeeping function.

This project turns old-school analog ammeters into a working clock that can also display the ambient temperature.

This project turns old-school analog ammeters into a working clock that can also display the ambient temperature.

In this project, we'll build and demonstrate a discrete analog solution to the incompatible logic levels of an Arduino…

In this project, we'll build and demonstrate a discrete analog solution to the incompatible logic levels of an Arduino Uno and an Elecrow e-paper HMI display.

We use a Raspberry Pi and free software to build a test platform for IoT systems.

We use a Raspberry Pi and free software to build a test platform for IoT systems.

In Part 2 of this two-part series, we turn our hardware assembly into a functioning soundboard by adding the necessary…

In Part 2 of this two-part series, we turn our hardware assembly into a functioning soundboard by adding the necessary code in Arduino IDE and uploading soundbites.

Learn how to turn an ATmega328 microcontroller and an assortment of readily available parts into a dedicated hardware soundboard.

Learn how to turn an ATmega328 microcontroller and an assortment of readily available parts into a dedicated hardware soundboard.

In this project article, we'll use a 555 timer IC to build an iconic musical instrument from the early days of synthesizers.

In this project article, we'll use a 555 timer IC to build an iconic musical instrument from the early days of synthesizers.

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along…

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along the way, we’ll learn about astable multivibrators and the Darlington pair.