Critical Citrix Bug Puts 80,000 Corporate LANs at Risk
The flaw resides in the Citrix Application Delivery Controller and Gateway. Continue reading Critical Citrix Bug Puts 80,000 Corporate LANs at Risk
Category Archives: adc
RTFM: ADCs and DACs
It’s tough to find a project these days that doesn’t use an analog-to-digital converter (ADC) or digital-to-analog converter (DAC) for something. Whether these converters come as built-in peripherals on a microcontroller, or as separate devices connected over SPI, I2C, or parallel buses, all these converters share some common attributes, …read more
The Cutest Oscilloscope Ever Made
If you thought your handheld digital oscilloscope was the most transportable of your signal analyzing tools, then you’re in for a surprise. This oscilloscope made by [Mark Omo] measures only one square inch, with the majority of the space taken up by the OLED screen.
It folds out into an …read more
A Hard Rocking Arduino Visualization Shield
Over the summer [ElectroSmash] put the finishing touches on the Arduino Audio Meter, a shield for the Arduino Uno that visualizes various aspects of an incoming audio signal on a set of four 8×8 LED dot matrices. Obsentisibly it’s for use on a guitar pedalboard, but thanks to the incredible …read more
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Your Arduino SAMD21 ADC is Lying to You
One of the great things about the Arduino environment is that it covers a wide variety of hardware with a common interface. Importantly, this isn’t just about language, but also about abstracting away the gory details of the underlying silicon. The problem is, of course, that someone has to decode …read more
Modern Analytics and End-to-End Visibility
Many Cloud Service Providers (CSP) and large enterprises struggle to deliver a commitment level for an application service. For a tenant, without a proper Service Level Agreement (SLA), it is impossible to manage an application for his or her own user… Continue reading Modern Analytics and End-to-End Visibility
Sound Card ADCs For Electrocardiograms
Every few years, or so we’re told, [Scott] revisits the idea of building an electrocardiogram machine. This is just a small box with three electrodes. Attach them to your chest, and you get a neat readout of your heartbeat. This is a project that has been done to death, but …read more
Keeping Pace in the Race for Flexibility
Flexibility and elasticity. Both rank high on the corporate agenda in the age of digital transformation and IT is no exception. From the perspective of IT, virtualization and cloud computing have become the de facto standard for deployment m… Continue reading Keeping Pace in the Race for Flexibility
Rebuilding The First Vocal Encryption System
Back in the early days of radio, it was quickly apparent that the technology would revolutionize warfare, but only if some way could be found to prevent enemies from hearing what was said. During World War II, the Allies put a considerable amount of effort into securing vocal transmissions, resulting in a system called SIGSALY – 50 tons of gear developed by Bell Laboratories with the help of Alan Turing that successfully secured communications between the likes of Churchill and Roosevelt during the war.
Now, a small piece of the SIGSALY system lives again, in the form of a period-faithful …read more
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Brushless Motor Thrust Stand Provides Useful Data
When designing model aircraft of any shape or size, it’s useful to know the performance you can expect from the components chosen. For motors and propellers, this can be difficult. It’s always best to test them in combination. However, with the numbers of propeller and motor combinations possible, such data can be tough to come by. [Nikus] decided it would be easier to just do the testing in-house, and built a rig to do so.
The key component in this build is the strain gauge, which comes already laced up with an Arduino-compatible analog-digital converter module. Sourced for under $10 …read more
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