There's a few Arduino projects popping up!
misaakidis will be showing something, epistimonas is thinking this is a chance to put together a DC power supply (part of another project) using an Arduino board, and more. In short, if you're working on an Arduino-related anything, or if you're just interested, this is for you.
We're also planning to have a Open Software Bundle to disseminate

BYOB BYOD (recommending zivania)

organisation pad: http://pad.hack66.info/p/HFD_2015

For some Open Hardware is a logical evolution of the Free Software philosophy applied to physical stuff, where both code and design blueprints co-exist. However no one can deny that humankind has evolved through a DIY and hack & share-it culture until patents prevented us to do so.

Hardware in our definition is used in its full meaning and covers not only electronic products but also stuff which do not run code such as furnitures and any “low tech” physical object you can think of.

For the scope of Hardware Freedom Day Open Hardware is a term used to describe physical objects which design is created and shared publicly without restriction, allowing people to modify, improve and redistribute their contributions. The design includes drawings, blueprints, software code that may be running in the device or used to generate some of its parts or drivers and any other information one could need to create that device itself. Generally this information is available under an electronic format on individual project websites, driven through the use of the Internet and rely on community knowledge and local DIY spaces (also often called hackspaces) to see the day of light.