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TXJS Node Workshop

We’re thrilled to announce a new workshop on July 23rd, the day prior to TXJS! Austin’s very own Bocouper Kassandra Perch aka Nodebotanist will be providing a full day workshop introducing server programming with Node.js. This workshop is particularly useful for front-end developers who are looking to expand their skills to include backend or full-stack […]

Pushing NodeBots Into The Future with Tessel 2

On March 5, 2015, Technical Machine announced the next generation of their Tessel platform: the Tessel 2. Additionally, Technical Machine announced a prototype-to-production service for products that are built with the Tessel 2. These are both very exciting developments for the future of NodeBots. According to Technical Machine, the Tessel 2 builds on and grows […]

JavaScript: Current Detection and Measurement with Johnny-Five on Node.js

The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. In certain cases, it may be useful to know how much current is drawn from a specific load in a circuit. In this article, we’ll measure current draw, with and without a load. The load will […]

JavaScript: LED Matrix Display with Johnny-Five on Node.js

The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. LED Matrix signs are everywhere: roadways (even cars themselves!), store awnings, offices, the grocery store deli, airports, train stations, taxi stands, libraries, alarm clocks, and so on. The use cases are so broad because the technology […]

JavaScript: Laser Intrusion Detection with Johnny-Five on Node.js

The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. A fairly common security mechanism, the laser intrusion detection system (or laser trip wire), is actually the composition of two devices: Laser Photoresistor, or photocell The laser emits a beam of light directly at the photocell; […]

JavaScript: Relay Control with Johnny-Five on Node.js

The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. Do not attempt this tutorial with a voltage source greater than 24V A Relay is a type of actuator, or electrically controlled switch, that allows controlling one circuit with another circuit. The controller circuit is completely […]

JavaScript: Tilt Sensor with Johnny-Five on Node.js

The Johnny-Five Tutorial Series is geared towards Arduino programming on Node.js, using the Johnny-Five framework. Get caught up here. A tilt sensor is a component that senses its own change in inclination. Similar to a button, tilt sensors are activated through a physical interaction mechanism; in the tilt sensor case, this is the act of […]

On-Board: Intel Galileo Programming with JavaScript and Node.js

Nearly two years has passed since I wrote the article that introduced Johnny-Five as a new way to program Arduino microcontrollers with JavaScript on Node.js. In those two years a lot of exciting things have been created, despite the potentially restrictive paradigm that Johnny-Five programs exist in. The underlying Firmata platform protocol forces Johnny-Five programs […]

Proactive Node.js Development with Travis CI

Life on the cutting edge can be treacherous. At any moment, your web browser may dramatically update its user interface. Your e-reader might take your books away. Your favorite snack cake could disappear from store shelves. For many, the uncertainty of this lifestyle just isn’t worth it. Fortunately, when it comes to Node.js development, you […]

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Building Command Line Tools in Node with Liftoff

One of my favorite things about programming in node is the package management system. In almost all instances, the practice of locally installing modules for each project has simplified my life as a developer. However, as a long time contributor to Grunt, I have become intimately familiar with one edge case where this practice breaks […]

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