Whether to move, turn, send a picture or change color, all fixtures and other gadgets receive their orders through the protocol ANSI E1.11 - 2008 USITT DMX512-A. I invite you to build your “DMX” interface with an Arduino controller, discover lighting control programs and discuss all issues around the DMX myths.

The invitation is for all the curious, potential users, artists, designers, stage technicians, designers and other techie!

Whether you have a possible project or the installation of your biggest life contract in lighting control, come live and discuss what DMX communication standard. Camaraderie and learning are the foundation of this meeting.

When: Saturday, March 7, 13 h 30
Where: at Foulab (999 du Collège, suite 33B, Montréal, Québec, Canada, H4C 2S3)
Reserve: Please reserve with dmx7mars (at) stephanebarbeau.com as the number of places is limited
Price: A $10 donation to the lab is suggested

• Interface creation: Transmitter only (without programming)

  • Materials:
    • 1 x Arduino or USB serial interface,
    • 1 x 75176 or Max485,
    • 1 x 100 ohms,
    • assembly plate.
    • Computer to host the control program. (PC, Mac or Linux)

• DMX reading (might be interesting to make a tool.)

  • Materials :
    • 1 x Arduino Uno or Pro mini,
    • 1 x 75176 or Max485,
    • 1 x 100 ohms,
    • assembly plate and some wires.

• Software Installation:

  • Take a tour of selected software
    • Q light + (Windows, Mac OS X, Linux)
    • Martin M-PC
    • Other

• Discussion of the protocol and test with electronic equipment (scope).

  • Cabling test
    • Type (zipcord, micro, cat5, cat6, various, recommended)
    • Length (short, long and very long)
    • Type variation on same length
    • Configuration test (to understand, should do or should not do)
    • Y, star configuration…
    • With and without terminator (100 ohms)
    • With Opto-isolater

If several people are interested, a group for Arduino (or copy) purchasing could be created.
I will have some parts (75176 mainly) for sale.

A list of resources (circuit, interface and program) is available on my website.

After traveling from Berlin and spending a month in Montréal with the Fight Boredom Zine Residency, zinester and activist Comet Crowbar is ready to release issue #15 of her zine, Infecticitis. This 3-hour hangout session is in two parts:

1-2pm Drawing & Comics workshop (Lynda Barry style)
During this hour we’ll play some drawing games, make comics, loosen up and get silly, and try to erase the idea of “but I can’t draw!” from our minds. Everyone can draw, and that’s what we’re gonna do. Bring your favorite pens and crayons (some paper and pens will be provided).

2:30-3:30 Introduction to PGP Email Encryption
First we will discuss why surveillance is harmful and affects everyone, and try to dismantle the apathetic idea of “but I have nothing to hide” as an excuse. Then we’ll explain the difference between symmetrical vs. asymmetrical cryptography, what a “keypair” is, how to verify your key, and what programs are needed to get it running on your computer. This workshop is coming from the understanding that it can be quite intimidating to learn all this “computer stuff” if you’re not that tech-savvy. We will smash that idea by making this a safer-space to ask questions, share knowledge, and use accessible language that everyone can understand. I am not an expert but I am happy to share what I know. Crypto is your friend! (P.S. One week later, FemHack will be delving into some more email encryption stuff!)

You will also find: Snacks, tea, nooks for reading/chatting and lots of zines! Come pick up a hot-off-the-press copy of Infecticitis #15 and Comet’s recent book, Tumble the Boulder – The Surveillance State and the American Empire. There will be a table of zines by queers, feminists, and anarchists from Fight Boredom Distro and a selection of zines on digital security from Comet’s Raumschiff Distro.

About the facilitator: Comet Crowbar is a white cis queer lady and is a co-founder and organizer of the Zine Fest Berlin. She’s passionate about self-publishing, cryptography, plants and weaving. Come say hi.

This event is a safer-space. A “safer space” means that we don’t tolerate any form of oppression or harassment, such as sexism, racism, transphobia, homophobia and other such BS! Please be respectful to each other and ask consent before you touch someone. Children are welcome, but as Foulab contains power tools and other hazards, they must be closely supervised by an adult for safety reasons.

Unfortunately the space is not wheelchair accessible.

Having the computer speak is key to human-like communication. However, the set of voices available for text-to-speech system (TTS) is limited. In this workshop we will be building a voice for the open source FestVox/Festival TTS that you record. The computer talks like you! (Or whomever you convince to record the prompts for you – your dog?).

The workshop is also a hands-on introduction to the free book “Building Synthetic Voices” that comes with Festival TTS.

You don’t need programming knowledge but you need some Unix knowledge. If you want to extend the recipes we will see in the workshop you will need to learn Scheme which is the programming language for extending Festival.

The workshop presentations will be in English, but we are more than happy to provide support and answer questions in French. Moreover, we will only cover generating English voices, as we are following the default tooling provided by FestVox. We hope to cover French synthesis in a later workshop.

We will cover:

• How to install and set-up Festival/FestVox/Edinburgh Speech Tools
• Overview of the full Festival TTS stack
• How to design prompts for limited domain TTS (reduced vocabulary)
• A full example in the bicycle safety domain that you’ll record during the workshop. (Hear it synthesized with Pablo’s voice here.)
• Introduction to diphone (large vocabulary) recording and synthesis (no diphone recording will take place during the workshop, though)

This workshop is just the beginning, potential follow-ups include French synthesis, differentiated intonation recordings or any other topic that interests the group. If you have a project that uses speech synthesis (or might benefit from it) bring a demo and we can hear it at the end of the workshop.

Requirements:

• A computer with a unix-like environment (GNU/Linux, Mac OS X or cygwin) capable of doing sound recording.
• RSVP to pablo.duboue (at) gmail.com required. Space is limited.
• Cost: $10 (all proceedings from this workshop will be donated to Foulab)

When?
Saturday, January 24th at 15h (about 3 hours in length)

Where?
Foulab, of course!

First evening dedicated to design of a PWM (pulse wave modulation) power control module.

Every good hacker sooner or later will require a pulse wave modulated power source. To simplify the project, we will focus on the controller and modulator (MOSFET). The module can then be connected to a power supply of your choice. We are aiming to construct a controller that can handle from 3 to 80 V at frequencies from 10Hz to 50kHz and currents of 20A or more.

When: 12 jan 2015 19h-22h
Where: Foulab

Everyone who is interested by this project is welcome.

Software defined radio (SDR) has become easily accessible thanks to the availability of inexpensive “dongles” using the RTL2832U chip. However, after tuning in the local FM station, sometimes it is hard to go further. This meeting brings together people with an interest in SDR to share knowledge and collaborate on projects.If you have SDR equipment, please bring it for show and tell (hence the title). And of course, it doesn’t literally have to be an RTL dongle, other radio platforms such as FunCube, HackRF, SoftRock, etc would be great.

Anyone with an interest in software defined radio is welcome. No particular background is required.

Time: 13h-16h 29-Nov-2014 at Foulab

There will be a round table discussion (in French lang.) of the “Internet after Snowden” held at room Z-330 of Pavillon Claire-McNicoll at l’Université de Montréal on September 23, 2014 at 16:30. The session is free, but preregistration is required. Full information is here

The next meeting of Réseau Libre, “hackfest”, will be held at Foulab on Thursday, April 3 2014 from 7 to 9pm. On the agenda: a demo of the project Commotion-Babel by the Polytechnic students and other fun things. This meeting is open to everyone.

For more information: http://wiki.reseaulibre.ca/nouvelles/2014-04-03-hackfest/