If you're a heavy user of OpenSCAD then you'll eventually get to the point where you have folders full of .scad files, with no idea what they are. Here's how to make a thumbnailer that will automatically generate a preview image that will display .scad files in Nautilus.
Over the past 6 months I've been working on developing an open source robotic sailboat called Pilothouse.
The goal of Pilothouse is to make an open source robotic sailboat that can autonomously navigate and sail itself long distances, and to prove that this can be done using the latest web technology: Node.js.
Pilothouse has a number of awesome features, including:
At this time, this project is just starting to get into autonomous control. Here's the first sail, with autonomous sail control and manual RC rudder.
As part of the Pilothouse project the base station displays all relevant boat state information, sent over WiFi.
The boat transmits the current state over WiFi, which is received by a long range USB WiFi antenna on the laptop. No software besides a web browser is needed.
This project was inspired by my volunteer work with Diane at RoboSail, an awesome project to teach kids programming through robotic sailboats.
I've selected the Intel Edison as the embedded Linux processor of choice for this project. But how does it perform? Let's find out.
The nearest competitor to the Edison is the RasberryPi2, which was released on February 2, 2015 at $35. The Intel Edison was released in September 2014, and costs about $85 depending on configuration.
Sequelieze is a great tool for database ORM mapping in Node.js, but it can have a pretty steep learning curve. In this post we go over some useful patterns related to subqueries in SQL, and their Sequelize equivelents.
