The dataset contains information about the current consumed by the robot-box measured in Ampere for each cycle along with their belt tensioning levels. Each line reported in the dataset is a json that follows the MIMOSA schema defined for the SERENA project and it represents a measurement of a cycle. The dataset contains in total 31648 cycles. Each cycle is characterised by a class. The possible classes are 0, 1 or 2 and they represents different level of belt tensioning. Class 0 is low tensioning, class 1 normal tensioning, and class 2 high tensioning.