Louis Opter

In this talk we'll take a close look at a one of the "smart" (WiFi-connected) light-bulbs available on the market today. The bulbs expose a small API over UDP that I used to run an interface on a programmable buttons array. We will see how topics like reverse engineering, security, licensing, "self-hosting" and user experience came into play.

monolight is an user interface to control LIFX WiFi-enabled light bulbs. monolight runs on a programmable button array; it is written in Python 3.6 (to have type annotations and asyncio), and it interfaces with the bulbs through a more complex daemon written in C: lightsd.

This talk will start with a live demo of the button grid remotely controlling the light bulbs. We will then explore how it works and some of the motivations behind it (network isolation, trying to not depend on the "cloud", reliability, user-experience). Finally, we will look into what kind of opportunities even more open IoT products could bring, and open leave the place to Q&A and discussion.

Device drivers are notoriously known to be a critical and prominent part of modern operating systems. We will draw up a summary of the current state of the art in device driver development: tools, methodologies and approaches which try to mitigate the problem. Then, we will present our take on it: a domain specific language with its own aspect-oriented programming paradigm, and its compiler, Rathaxes. We will show you interesting details of an implementation, in the Rathaxes DSL, of the e1000 ethernet driver for Linux. We will conclude with how Rathaxes fits into the current state of the art, our vision, and next steps.