STM32 Oscilloscope Uses All The Features

[jgpeiro] is no slouch when it comes to building small, affordable oscilloscopes out of common microcontrollers. His most recent, based on an RP2040 with two channels that ran at 100 MSps, put it o…

Blinkenlights To Bootloader: A Guide To STM32 Development

While things like the Arduino platform certainly opened up the gates of microcontroller programming to a much wider audience, it can also be limiting in some ways. The Arduino IDE, for example, abs…

Apple III Slows Down To Smell The Roses

The most collectible items in the realm of vintage computers often weren’t the most popular of their era. Quite the opposite, in fact. Generally the more desireable systems were market failur…

A New Educational Robotics Platform

When looking for electronics projects to use in educational settings, there is no shortage of simple, lightweight, and easily-accessible systems to choose from. From robotic arms, drones, walking r…

MicroLisp: Lisp For Microcontrollers Now Has Lisp-Based ARM Assembler

In a way it feels somewhat silly to market a version of Lisp as targeting resource-constrained platforms, considering the systems it ran on back in the 1960s, but as time goes on, what would have g…

Presence Sensor Locks Computer When You Step Away

Having a computer that locks its screen after a few minutes of inactivity is always a good idea from a security standpoint, especially in offices where there is a lot of foot traffic. Even the five…

Arduino Offers Up Two New Uno Boards

Featuring an ESP32-S3 co-processor

Want Lower Power? Add More Cores!

[Jacob Beningo] over at Embedded.com recently posted his thoughts on how to do a low-power microcontroller design. On the surface, some of his advice seems a little counter-intuitive. Even he admit…

Adding Variometer Functionality To A GPS

Flying a glider, or similarly piloting a paraglider or hang glider, can all be pathways into aviation with a lower barrier of entry than powered flight. Sacrificing one’s engine does generate…

The New Hotness

If there’s one good thing to be said about the chip shortage of 2020-2023 (and counting!) it’s that a number of us were forced out of our ruts, and pushed to explore parts that we never would have …

Holograms Display Time With ESP32

Holograms and holographic imagery are typically viewed within the frame of science fiction, with perhaps the most iconic examples being Princess Leia’s message to Obi-Wan in Star Wars, or the…

Pi Microcontroller Still Runs A Webserver

At first glance, the Raspberry Pi Pico might seem like a bit of a black sheep when compared to the other offerings from the Raspberry Pi Foundation. While most of the rest of their lineup can run L…

Magic 8 Ball Provides Tech Support

ChatGPT might be making the news these days for being able to answer basically any question it’s asked, those of us who are a little older remember a much simpler technology that did about th…

New Part Day: TI Jumps In To The Cheap MCU Market

One of the interesting areas in the world of new parts recently has been at the lower end of the microcontroller market. Not because the devices there have new capabilities or are especially fast, …

FOSDEM Sees Surprise Pico Balloon Event

At any vaguely-related conferences, groups of hackers sometimes come together to create an impact, and sometimes that impact is swinging something into an airspace of a neighboring country. [deadpr…

Low-Power Wi-Fi Includes E-Paper Display

Designing devices that can operate in remote environments on battery power is often challenging, especially if the devices need to last a long time between charges or battery swaps. Thankfully ther…

A CH32V003 Toolchain — If You Can Get One To Try It On

We’re in an exciting time for cheap microcontrollers, as with both the rise of RISC-V and the split between ARM and its Chinese subsidiary, a heap of super-cheap and very capable parts are co…

Wi-Fi Sensor For Rapid Prototyping

There might seem like a wide gulf between the rapid prototyping of a project and learning a completely new electronics platform, but with the right set of tools, these two tasks can go hand-in-hand…

Audio Playback Toy For DSP Adventures

The declining costs of single-board computers has made serious computing power available for even the most trivial of tasks. It’s easy enough to slap a Raspberry Pi onto almost anything for n…

Ambient Display Tells You If Borealis Is Coming To Town

For those times when you’d rather not get sucked down another internet rabbit hole when you really just wanted the weather, an ambient display can be great. [AlexanderK106] built a simple amb…