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Zero to BLE on iOS – Part Two

New wearable devices are everywhere and consumers expect your apps to communicate with their iPads and iPhones out of the box.

Today we use the Bluetooth Low Energy (BLE) standard to do this. Our primer introduces the BLE standard, explains how delegates function, and presents a basic development workflow.

Slim + Fast: A Primer on Resource Weight - Images

The challenges to a front-end developer can be numerous. In addition to performing our day-to-day tasks, we are often expected to know a little (or a lot) about a wide array of subjects. Graphics, languages, user experience, accessibility, source control, security, browser compatibility, content management systems, and more.

How Bundler Works: A History of Ruby Dependency Management

This post was originally given as a presentation at RailsConf 2015.

Using Ruby code written by other developers is easy! Just add it to your Gemfile, run bundle install, and start using it.

But what's really happening when you do that? How can use you someone else's code just by putting it in your Gemfile?

Zero to BLE on iOS - Part One

Get your apps communicating in this Internet of Things era.

Our Zero to BLE on iOS primer will have you gathering information from whatever the newest, hottest wearable mobile device is and sharing that information with your consumer's primary mobile device--iPhones and iPads. Evan K. Stone introduces basic concepts you'll need for developing for Bluetooth Low Energy (BLE), such as the terms Peripheral and Central; Advertising or Discovery; and commonly used classes like CBCentralManager, CBPeripheral, and more.

TCP Delays and Retransmissions on Illumos

The other day, I helped debug an issue on some production Joyent Cloud servers (which use SmartOS, based on Illumos, the open-source successor to Solaris). The solution turned out to be so non-obvious, and the cause pretty interesting, so I thought it was worth writing up.

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