MORE ABOUT Raspberry Pi

For the cost of 3 Raspberry Pis you will get from Allo, the DigiOne, a HAT for the Raspberry Pi, which makes available a digital S/P-DIF signal from the audio signal playing on the Pi. Is it worth that much?

Language assistants like Alexa, Google Home or Siri are now commonplace. However, the actual recognition of the spoken words is not done locally, but in the Cloud of the provider – which raises questions about data privacy. There are other solutions such as Snips – a speech recognition system that runs entirely on local hardware like the RPi. We took a look at a speech recognition kit and show how you can use it to develop your own applications...

Snips is a platform for connected "things". It allows developers and manufacturers of "things" to add a voice assistant to their products Your Raspberry PI may not yet obey your finger or your eye, but thanks to Snips it is at your command. This article explains how to add "ears" to a Raspberry Pi.

In the last issue we presented the ‘IOTA’ crypto currency which permits IoT nodes to pay other subscribers — for example for storing data [1]. In order to perform IOTA transactions, a proof-of-work calculation task must first be solved; this protects the transaction database ("tangle") from spam. Even x86 computers sweat during the arithmetic task, but IOTA provides for smaller IoT nodes to outsource this work to specialized devices. The second part of the series introduces such a platform based on an FPGA add-on board for the Raspberry Pi.

Although we usually expect them to surprise us, the British know how to make a grand announcement. Even their most anticipated surprises remain real surprises. And sometimes very good surprises. So it is with the new version of that celebrated British single board computer that is found everywhere, even hidden within the labs of NASA. The star of the week is Version 4 of the Raspberry Pi.

A small Raspberry Pi computer has been used to steal data from the Jet Propulsion Lab (JPL) of NASA. A report states that about 500 MB of data was stolen with the RPi. Two of the relevant files were apparently related to the international transfer of secret military and space technology.

At last, the new Raspberry Pi 4 hardware has arrived. The last time new hardware arrived the steps forward were modest if not small. From Raspberry Pi 2 to Raspberry Pi 3 was a nice step forward, but from 3 B to 3 B+, to be honest, was more a facelift than a real step. Over time, after the launch of the Raspberry Pi 3 B+, competitors appeared with more powerful and feature-rich hardware like USB 3.0 and native Ethernet, just to name a few improvements.

Do you intend to work on a Raspberry Pi project with a camera? Then this book will get you going for sure. In this book about camera projects, Dogan Ibrahim shows you how you can do this step-by-step . From a simple photo with a selfie stick, or the construction of a wildlife camera, right up to the complex process of licence plate recognition.

The word LiDAR, the ‘Li’ meaning ‘light’ indicates a device for optoelectronic echolocation. Instead of radio frequencies, the Lidar transmits a pulsed laser beam, the echo of which allows the determination of the distance of a reflecting obstacle. There is much talk these days of self-driving cars. Cheap Lidars with interesting characteristics are now available to anyone; they permit rapid development beyond the experimental stage.

Elektor software developer and lab worker Mathias Claußen was tasked to develop a control for the FM radio on the Raspberry Pi [1] using a touch screen. The platform-independent (GUI) framework Qt has almost become the go-to industry standard to build such interfaces, so the choice was clear. For any developers out there facing similar challenges, Mathias has put together a manual that shows how set up a cross-compiler environment on a PC to allow you to compile Qt applications for the Raspberry Pi from a PC — he also includes a simple demo of course.