Open Hardware/Modding: DAC2 Pro, Raspberry Pi, and More
-
HiFiBerry DAC2 Pro & HD review
On the more affordable end is the DAC2 Pro. This features a dedicated 192kHz/24-bit DAC, low-jitter clocks, and low-noise voltage regulators, all with the purpose of producing the best sound possible at that price point. It also features a headphone amplifier for convenience.
-
Classroom activities to discuss machine learning accuracy and ethics | Hello World #18
In Hello World issue 18, available as a free PDF download, teacher Michael Jones shares how to use Teachable Machine with learners aged 13–14 in your classroom to investigate issues of accuracy and ethics in machine learning models.
-
The Hacking of Starlink Terminals Has Begun
Today, Lennert Wouters, a security researcher at the Belgian university KU Leuven, will reveal one of the first security breakdowns of Starlink’s user terminals, the satellite dishes (dubbed Dishy McFlatface) that are positioned on people’s homes and buildings. At the Black Hat security conference in Las Vegas, Wouters will detail how a series of hardware vulnerabilities allow attackers to access the Starlink system and run custom code on the devices.
-
Open source chips from Germany are possible
In order to be able to have semiconductor components manufactured that reliably do not contain any hidden or unwanted functions, the respective contract manufacturer must disclose the Process Design Kit (PDK) for his manufacturing technology. Until now, only the US contract manufacturer SkyWater has provided such an open-source PDK. Now the IHP Solutions department of the Leibniz Institute for High-Performance Microelectronics (IHP) in Frankfurt an der Oder is following suit.
Frank Vater from the IHP announced at the Free Silicon Conference (FSiC) 2022 in Paris that the PDK for the in-house 130-nanometer manufacturing technology S13G2 would be disclosed. This allows chips with digital, analog and high-frequency circuit parts to be manufactured.
-
From Product To Burnout To Open-Source: The Ergo S-1 Keyboard Story
[Andrew] from [Wizard Keyboards] emailed us and asked if we were interested in his story of developing an ergonomic keyboard as a product. Many of us can relate to trying to bring one of our ideas to market. [Andrew], being a mechanical keyboard geek, knew a niche with no product to satisfy it, and had a vision he wanted to implement. He started meticulously going through steps for bringing his keyboard idea into life as a manufacturable product, and gave himself six months to get it done.
-
A Fast Linear Actuator Entirely In One PCB
There are many ways to make a linear actuator, a device for moving something is a straight line. Most of the easier to make ones use a conventional motor and a mechanical linkage such as a rack and pinion or a lead screw, but [Ben Wang] has gone for something far more elegant. His linear actuator uses a linear motor, a linear array of coils for the motor phases, working against a line of magnets. Even better than that, he’s managed to make the whole motor out of a single PCB. And it’s fast!
-
Your MicroPython Board Can Be Your Tinkering Peripheral
[Brian Pugh] has shared a cool new project that simultaneously runs on desktop Python and MicroPython – the Belay library. This library lets you control a MicroPython device seamlessly from your Python code – interacting with real-world things like analog/digital trinkets, servos, Neopixels and displays, without having to create your own firmware or APIs.