Cu Lì

142 Flips | 13 Magazines | 131 Likes | 38 Following | 13 Followers | @thevuuranusls | I have no special talent. I am only passionately curious Albert Einstein

Using Command Line Aliases - Frequently

(Last Updated On: September 16, 2015)<p>Back in 1994, when I had been using SunOS for three years and Linux for almost two years, people started talking …

Implementing a Neural Network from Scratch in Python – An Introduction

Get the code: To follow along, all the code is also available as an iPython notebook on Github. In this post we will implement a simple 3-layer …

Discover What's Attached To Your Network

21. 08. 2015 Juergen Vigna NetEye<p>Discover What’s Attached To Your Network<p>Sometimes it is necessary to have a look at the components, which are …

linkedin

Running a GSM Network on the Raspberry Pi 2<p><b>Building a GSM network-in-a-box with Raspberry Pi 2, UmTRX and Osmocom.</b><p>While it was just about possible to …

67 open source tools and resources for the Internet of Things (IoT)

The idea behind open source has been around for years, long before the movement toward open source software in the late 1980s—even before computers …

The Ins and Outs of Token Based Authentication

IntroductionToken based authentication is prominent everywhere on the web nowadays. With most every web company using an API, tokens are the best way …

Software Development

Comparison of MQTT and DDS as M2M Protocols for the Internet of Things

Multiple protocols have been positioned as “the” application-layer messaging protocol for the Internet of Things (IoT) and Machine-to-Machine (M2M) communication. In fact, these protocols address different aspects of IoT messaging and are complementary more than competitive (other than for …

Beyond MQTT

A core part of Cisco’s Internet of Everything narrative is the Internet of Things—what we view as the latest wave of the Internet – connecting physical objects in ways that help us analyze and control our environment to provide better safety, comfort, and efficiency.<p>This is not a new concept—RFID …

Raspberry Pi Audio Player

Making a Wall Hanging Brass Mechanical Alarm Clock in the Home Machine Shop<p>MechWatch - a Custom Digital Watch<p>Rotating TV<p>3D CAM and CNC Class<p>Very nice …

Raspberry Pi

Why you should never, ever, ever use MongoDB - joepie91's Ramblings

MongoDB is evil. It...<p>... loses data (sources: 1, 2)<br>• ... in fact, for a long time, ignored errors by default and assumed every single write succeeded …

Databases

4 Gmail Hacks That Will Change The Way You Work

If opening your inbox gives you a panic attack, try these simple moves to make Gmail feel more manageable.<p>I’ll be honest—I’ve had mixed feelings about Gmail. Sometimes it’s fantastic, like when my best friend and I send each other cool links all morning while simultaneously talking on Gchat. But …

Raspberry Pi GPIO Quick Reference Ruler (video)

Co-creator of the awesome HDMIPi monitor Alex Eames, as well as other useful Raspberry Pi add-ons has this week launched a new campaign for his …

Systemd – What You Need to Know

Unless you have been living under a rock, or worse – you don’t care much about how Linux works, you must have heard of systemd, the (relatively) new …

The Billion Dollar Food Delivery Wars

Over the past 12 months, food and grocery delivery has been one of the hottest VC sectors. More than $1 billion was invested in 2014 – an almost fourfold increase year-on-year – with a further half a billion dollars invested in Q1 2015, according to CB Insights.<p>Since the successful IPOs of Just Eat …

How does Shazam work

Have you ever wondered how Shazam works? I asked myself this question a few years ago and I read a research article written by Avery Li-Chun Wang, …

Music Production

nodejs & express https server with NGINX

I'm trying to setup a nodejs server with https to make REST calls to. Connecting directly to ip + port through http works fine. When using https with …

Nginx

Raspberry Pi Humidity and Temperature Sensor and Dashboard

Connecting IoT sensor readings to a realtime dashboard was a pain, so we built EON, an open source JavaScript framework for realtime charts, maps, …

Microcontroller