Latest Assembly Projects

This project brief describes how to build and use an Arduino-compatible board that reads a linear Hall-effect sensor and…

This project brief describes how to build and use an Arduino-compatible board that reads a linear Hall-effect sensor and reports the measurement over an RS485 bus.

Learn how to construct a robust DMOS-based board featuring mute and standby controls. It easily drives 4 or 8 Ω loads…

Learn how to construct a robust DMOS-based board featuring mute and standby controls. It easily drives 4 or 8 Ω loads for your next custom stereo or speaker project.

Safely drive up to ±500 mA into reactive loads. This compact module employs the LT1970A and offers independent 1%…

Safely drive up to ±500 mA into reactive loads. This compact module employs the LT1970A and offers independent 1% source/sink thresholds and onboard fault diagnostics.

This project brief describes how to build a compact dual-channel power amplifier module that delivers 38 W per channel…

This project brief describes how to build a compact dual-channel power amplifier module that delivers 38 W per channel into 4-ohm speakers using STMicroelectronics' STA540 audio amplifier IC.

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.

For this project, I built a handheld resistor color code calculator and ohmmeter using the ATmega328 microcontroller and…

For this project, I built a handheld resistor color code calculator and ohmmeter using the ATmega328 microcontroller and a 1.8-inch color LCD display.

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 article we’ll discuss the design for a custom microcontroller programming/debug/extension PCB and we’ll look…

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

The MSP430FR2633 is a low-power microcontroller with multiple GPIOs and capacitive touch pins. This project creates a…

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.

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

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

The best way to solder surface mount devices (SMDs) onto printed circuit boards (PCBs) is with a reflow oven, but when…

The best way to solder surface mount devices (SMDs) onto printed circuit boards (PCBs) is with a reflow oven, but when that's not possible, a hot-air station can be successfully used.

Learn about SKD v2.0.0 and how flashing your ESP-01's firmware just got easier.

Learn about SKD v2.0.0 and how flashing your ESP-01's firmware just got easier.

No more waiting around for the groundhog. The Punxsutawney 5000 is here to keep you inside until springtime arrives!

No more waiting around for the groundhog. The Punxsutawney 5000 is here to keep you inside until springtime arrives!

LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own…

LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own ring light out of LEDs!