https://www.raspberrypi.org/blog/scratch-2-raspberry-pi/ Scratch 2.0 is now available as an offline app for the Raspberry Pi! This new version of Scratch allows you to control the Pi’s GPIO (General Purpose Input and Output) pins, and offers a host of other exciting new features. As with Scratch 1.4, Scratch 2.0 on the Raspberry Pi allows you to create code to →
http://hackaday.com/2017/06/20/practical-iot-cryptography-on-the-espressif-esp8266/ This article will focus on applying AES encryption and hash authorization functions to the MQTT protocol using the popular ESP8266 chip running NodeMCU firmware. →
https://opensource.com/article/17/2/hidden-costs-free-software?sc_cid=7016000000127ECAAY We’re used to hearing of software being described as “free as in freedom” and “free as in beer.” But there’s another kind of “free” that doesn’t get talked about as much: “free as in puppy.” This concept is based around the idea that when someone gives you a free puppy, that puppy isn’t really free. There’s →
http://spectrum.ieee.org/geek-life/hands-on/how-i-built-an-ai-to-sort-2-tons-of-lego-pieces This is an interesting story that combines AI and LEGO. Even second-hand Lego isn’t cheap. Bulk unsorted Lego sells for roughly €10 per kilogram (about US $11/kg), boxed sets go for €40/kg, and collections of rare parts and Lego Technic pieces much more. Consequently, there exists a cottage industry of people who buy new sets and →
http://www.zdnet.com/article/linux-owns-supercomputing/ In the latest Top500 supercomputer race, only two — count ‘em, two — of the world’s fastest computers aren’t running Linux. →
https://www.flightradar24.com/ This is a cool service when you want to know what is happening when flights are late. Flightradar24 is the best live flight tracker that shows air traffic in real time. Flightradar24 is a global flight tracking service that provides you with real-time information about thousands of aircraft around the world. The service is currently →
https://www.cyberciti.biz/faq/how-to-display-countdown-timer-in-bash-shell-script-running-on-linuxunix/ There are various ways to show a countdown in your shell scripts. →
https://en.m.wikipedia.org/wiki/Banana_connector A banana connector is a single-wire (one conductor) electrical connector used for joining wires to equipment. The term 4 mm connector is also used, especially in Europe,because the pin’s diameter is nominally 4 millimetres (0.16 in).The pin has one or more lengthwise springs that bulge outwards slightly, giving the appearance of a banana. The original plug consists of a cylindrical metal pin about 20 millimetres (0.79 in) long.However other →
https://www.theregister.co.uk/2017/06/23/aes_256_cracked_50_seconds_200_kit/ Side-channel attacks that monitor a computer’s electromagnetic output to snaffle passwords are nothing new. They usually require direct access to the target system and a lot of expensive machinery – but no longer. Researchers at Fox‑IT have managed to wirelessly extract secret AES-256 encryption keys from a distance of one metre (3.3 feet) – →
https://blog.acolyer.org/2017/06/22/iot-goes-nuclear-creating-a-zigbee-chain-reaction/ The popular Philips Hue smart lamps use ZigBee for example. Suppose you could build a worm that jumps directly from one lamp to another using their ZigBee wireless connectivity and their physical proximity. If the install base of lamps in a city is sufficiently dense, you could take them all over in no time, →