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…

Networking With Balloons

Starlink has been making tremendous progress towards providing world-wide access to broadband Internet access, but there are a number of downsides to satellite-based internet such as the cluttering…

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 …

Hackaday Links: April 9, 2023

When it comes to cryptocurrency security, what’s the best way to secure the private key? Obviously, the correct answer is to write it on a sticky note and put it on the bezel of your monitor;…

Sound Sculpture Uses Daisy Seed To Generate Audio

Here at Hackaday, we love a good art piece, whether that involves light or sound. Combining both is a sure-fire way to get our attention, and [Eirik Brandal] did just that with his Void Extrusion p…

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…

Take A Ride Through The Development Of A Custom BLDC Motor Controller

The folks over at the [Barkhausen Institut] are doing research into controlling autonomous fleets of RC cars and had been using off the shelf electronic speed controllers (ESCs) to control the car …

Pocket-Sized Thermal Imager

Just as the gold standard for multimeters and other instrumentation likely comes in a yellow package of some sort, there is a similar household name for thermal imaging. But, if they’re known…

DIY STM32 Scope Is Simple, Cheap, And Featureful

Would you like to have a small digital oscilloscope? Do you have a spare BlackPill (STM32F401) board and a TFT display laying around? [tvvlad1234] presents us with a simple and educational digital …

Need To Dump A Protected STM32F0x? Use Your Pico!

Sometimes, security mechanisms can be bypassed if you just do things slightly out of the ordinary. For instance, readout protection on microcontrollers is a given nowadays, to the point where it&#8…

DIY Macro Keyboard Wood Be Nice

Editing video tends to involve a lot of keyboard shortcuts, and while this might be fine for the occasional edit, those who regularly deal with video often reach for a macro pad to streamline their…

Beat Backing Box For Bassists

The soul of a rock band is its rhythm section, usually consisting of a drummer and bass player. If you don’t believe that, try listening to a band where these two can’t keep proper time…

Epic Guide To Bare-Metal STM32 Programming

[Sergey Lyubka] put together this epic guide for bare-metal microcontroller programming.  While the general concepts should be applicable to most any microcontroller, Sergey’s examples specif…

Homebrew Espresso Maker Modding With Gagguino

For those that don’t know, Gaggia is a company that produces a line of affordable “entry-level” espresso coffee makers that offer good quality consumer espresso machines at reason…

Water Level Sensor Does Not Use Water Level Sensor

When interfacing with the real world, there are all kinds of sensors available which will readily communicate with your microcontroller of choice. Moisture, pH, humidity, temperature, location, lig…

Everything You Didn’t Know You Need To Know About Glitching Attacks

If you’ve always been intrigued by the idea of performing hardware attacks but never knew where to start, then we’ve got the article for you: an in-depth look at the hows and whys of ha…

Bare-Metal STM32: Adding An Analog Touch With ADCs

An Analogue to Digital Converter (ADC) is at its core a straight-forward device: by measuring an analog voltage within a set range and converting the measured level to a digital value we can use th…

Odd Inputs And Peculiar Peripherals: RoenDi Smart Knob Thinks Outside The Box

When it comes to design decisions, we’re often advised to “think outside the box.” It’s generally good advice, if a bit abstract — it could really mean anything. But i…

StarPointer Keeps Scope On Target With Stellarium

On astronomical telescopes of even middling power, a small “finderscope” is often mounted in parallel to the main optics to assist in getting the larger instrument on target. The low ma…

SWO: An ARM Printf By Any Other Name

I’ll confess. Although printf-style debugging has a bad rep, I find myself turning to it on occasion. Sure, printf is expensive and brings in a lot of code, but if you have the space and time…