Learn how to turn old appliances into smart, Wi-Fi-enabled devices with ESP8266 and ESPHome. DIY automation made simple for your home.

[Scott] was driving in the pouring rain behind a car with its blinkers on when inspiration struck. He had previously created a simple communications system using his sound card that allowed him to ...

This MCU-based circuit converts sensor outputs, which are often voltage, into a standard current signal, thus avoiding noise and loss when sending over long lines. When taking measurements from analog ...

It’s difficult to convey in an era when a UNIX-like operating system sits in your pocket, how there was once a time when the mere word was enough to convey an aura of immense computing power. If you ...

Many microcontrollers have built-in ADCs (analog-to-digital converters), which means you can use a single device to both digitize analog signals and manipulate the results. Once the ADC digitizes a ...

The Raspberry Pi Pico 2 is an upgraded version of the original Pico microcontroller, featuring enhanced performance, increased memory, improved power efficiency, and new security features. It retains ...

As computer systems become more and more ubiquitous in everyday items, the workings of those items will require some sort of digital controlling. Controllers that once handled large mechanical systems ...

A typical PC-based test system may include analog and digital I/O cards and one or more communications buses that let you control external instruments. Budget restrictions, however, may force you to ...

In its introductory blog post, the company explains that today’s Raspberry Pis are already often used alongside a smaller microcontroller: The Raspberry Pi takes care of heavyweight computation, ...

Unijunction transistors (UJTs) were common circuit elements several decades ago. A simple ramp generator could be built from a single UJT and a few other components (Fig. 1). 1. In a simple UJT-based ...