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https://olimex.wordpress.com/2019/09/05/open-fest-2019-is-approachingthe-traditional-olimex-soldering-workshop-this-year-will-be-pimp-your-bike-with-oshw-audi-type-turn-signal-lights/
Open Fest 2019 is approaching,the traditional Olimex Soldering Workshop this year will be: Pimp your bike with OSHW Audi type turn signal lights