The EFF Nails It: What’s Wrong With UK Digital ID

It sometimes seems as though we are in a constant tussle over privacy between governments and the governed, with each year bringing fresh attempts to extend surveillance, and consequent battles. For Brits the big news at the moment comes in a new digital ID scheme, something that will be required for anyone wishing to work in the country, as well as for certain government services. It’s something that has attracted a lot of opposition, and now the EFF have produced an analysis  of why they think it won’t work.

From the perspective of a British writer it would be easy to write screeds about the flaws in the scheme, the way it over-reaches, and about the historical distrust of Brits for their government’s bureaucracy. With the parliamentary petition opposing it approaching three million signatures, there’s no shortage of people who don’t support it. Perhaps the most obvious thing for most of us is how unnecessary it is for its stated aim of preventing illegal immigrants from seeking employment, it neglects that we already have to show proof of right to work before being hired, and that if crooked employers ignore that they will surely also ignore the digital ID.

If you’re reading this elsewhere in the world from where this is being written then it’s still of relevance, because governments like to point to other countries to justify these measures. Follow the EFF on this matter, and take note.


Art: British Passport SVG by Swapnil1101, Public Domain

LED Hourglass Is A Great Learning Project

An hourglass tells you what it is in the name — a glass that you use to measure an hour of time passing by. [EDISON SCIENCE CORNER] has built a digital project that mimics such a thing, with little beads of light emulating falling sand in the timekeepers of old.

The build is designed around the Arduino platform, and can be constructed with an Arduino Uno, Nano, or Pro Mini if so desired. The microcontroller board is hooked up with an ADXL335 three-axis accelerometer, which is used for tracking the orientation and movement of the digital hourglass. These movements are used to influence the movement of emulated grains of sand, displayed on a pair of 8×8 LED matrixes driven by a MAX7219 driver IC. Power is courtesy of a 3.7 V lithium-ion cell, with a charge/boost module included for good measure. Everything is wrapped up in a vaguely hourglass-shaped 3D printed enclosure.

The operation is simple. When the hourglass is turned, the simulated grains of sand move as if responding to gravity. The movement is a little janky — no surprise given the limited resolution of the 8×8 displays. You also probably wouldn’t use such a device as a timer when more elegant solutions exist. However, that’s not to say builds like this don’t have a purpose. They’re actually a great way to get to grips with a microcontroller platform, as well as to learn about interfacing external hardware and working with LED matrixes. You can pick up a great deal of basic skills building something like this.

Would you believe this isn’t the first digital hourglass we’ve featured on the site?

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