LARICS and LABUST organized an H2020 project subCULTron workshop titled “stress test workshop” at UNIZG FER on 9 – 13 January 2017 with all project partners representatives. The overall goal of the workshop was to feature freeze new electronic design for the mass production of 100+ aMussel units. Extensive testing on three newly produced aMussels in the pool as well as out of it validated the design and provided us with the data to make minor adjustments before taking the next step.