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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: ESC Programming and Brushless Motors on Intel Galileo

Previously: On-Board: Intel Galileo Programming with JavaScript and Node.js, and JavaScript: Verifying Analog Write on Intel Galileo At Bocoup, we’re commited to exploring JavaScript hardware programming; as a result of those efforts we’re excited to share a breakthrough today: This is especially exciting as it marks the first time ever that a JavaScript program was […]

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: Verifying Analog Write on Intel Galileo

Previously: On-Board: Intel Galileo Programming with JavaScript and Node.js When working with emerging platforms, it’s common to find yourself in a position where the platform itself requires some form of testing or validation. Often, it’s not clear how to execute these sort of validations. Thankfully, when the platform’s hardware and software is completely open, the […]

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 […]

JavaScript: Arduino, Kinect Controlled Robot Arm

Johnny-Five was first released in 2012 and since then, we’ve spent a lot of time attempting to “prove” that JavaScript is capable of things that robotics programming has long taken for granted. Specifically, we’ve used the Johnny-Five framework to recreate popular hobbyist robotics projects that were previously written in C. In this article, I’m presenting […]

Bocoup on Air: Making Robots with JavaScript

In case you missed it, Rick Waldron and I got together recently to talk about Johnny Five, a library that lets you control an Arduino using JavaScript. Rick showed off some of his Johnny Five creations — including a dancing robot — and I got to geek out a bit more about shift registers and […]

Getting Bitwise with JavaScript

00000001 // 1 — truthy, so LED 7 is ON Throw in the iteration from 0 to 255, a timeout, and some Johnny Five code, and we end up with this: Part 2: Learning to Write If all we wanted to do was count from 0 to 255 in blinking lights, then the best we […]