Chariot’s Tech Blog

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Posted on Aug 16, 2016 by

Building our first tvOS app

When the 4th-generation Apple TV and tvOS were released, anyone could write apps for the TV, not just Apple partners. I decided to write an app to make ETE presentations and other Chariot content available though an app. (Now I can catch up on presentations while relaxing on the couch.) In this post I'll take a quick look at some of the architecture choices made when building our first tvOS app.

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Posted on Aug 11, 2016 by

Social Engineering at DEFCON

Hello, Dave? My name is Larry Smith and I am calling from WZT, the company handling RTD's HR. There have been a number of complaints regarding the on-boarding process. Now how long have you been with this company? - Three months. Ok, great, so when you started what kind of training were you provided? - […]

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Posted on Aug 02, 2016 by

Simply explained: Akka Streams Backpressure

Backpressure Food for thought Very simply put, the idea behind backpressure is the ability to say "hey slow down!". Let's start with an example that has nothing to do with software: Imagine you own a factory that produces doughnuts (lucky you!) and just signed a contract with the largest grocery chain in the Northeast US. […]

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Posted on Jul 25, 2016 by

The Internet Of Things with Scala – Part 2

This is a continuation of my Internet of Things with Scala posting. In this installment I will go over the assembly of the device that will be used to capture the soil moisture data and send it to an MQTT broker so that it may be picked up by the Scala/Akka based application. The Parts […]

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Posted on Jul 14, 2016 by

Introducing N|Solid: a Node.js Application Profiler

N|Solid is an application profiler for Node.Js. This blog post and attached video shows you how to use it to find out what your Node applications are doing.

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Posted on Jun 23, 2016 by

The State of Angular 2.0: Are we there yet?

At Chariot, we've been Tracking the replacement of AngularJs with a from-the-bottom-up rewrite called Angular 2 for over a year and a half now. Let's look at where the framework stands as it has released RC2 late last week and RC3 today.

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Posted on May 31, 2016 by

What LightBend’s next round of financing means to the Software Development World

Last week, Lightbend (formerly Typesafe) received a cash infusion of $20M from investors (see announcement here). At Chariot, we are happy for our partner. More than that, we believe that it signals a growing trend of the importance of the convergence of IoT, mobile and the collection and use of data in real time. IDC […]

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Posted on May 19, 2016 by

Angular2 is getting into the whole Redux thing with ngrx/store and ng-redux

There are several projects that have been bringing a reducer-based state store to Angular, namely @ngrx/store by Rob Wormald, and angular-redux/ng2-redux. Both teams are developing APIs in the style of Redux, which is a functional-programming-driven immutable state store, using reducer functions and a dispatching mechanism to handle changes in state. Let's see how they work.

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Posted on May 17, 2016 by

The Internet Of Things with Scala – Part I

There has been a great deal of buzz around the Internet of Things lately. The advent of small inexpensive devices and in particular the Arduino has inspired a generation of people with no background in electrical engineering to do some very creative things. I myself was first inspired by the Arduino and had built several […]

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Posted on May 10, 2016 by

Data At The Speed Of Life – Reactive IoT Applications in Scala with Angular2

I had recently come off of a three year contract and found myself with some time on my hands. I was interested in working on an application that interfaced directly with some sort of small device. The director of our company, Don Coleman, had done a good bit of work with small devices so I spoke to him about the possibility of building a small application around those devices. He agreed to it and offered to assist from the hardware end. Our director of training, Ken Rimple, was researching the Angular 2 JavaScript framework at the time and offered to build the UI for the application. We eventually decided that we would build a demo to display at our booth at the 2016 South by SouthWest conference. This post explains our approach and some lessons learned.

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