Hello,
In Toulouse, next november (19th and 20th), conferences and workshops are organized around the free software and the free culture. You may find more information on https://2016.capitoledulibre.org/ (in french sorry). Embedded and IoT are one on the main theme. The call for proposals is opened until 30 September 2016. Travel and accomodation is payed for speakers. You could contact the organization team directly with contact <at> capitoledulibre.org
Regards, Guillaume GASNIER