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Description: This project is a master thesis work under BUT (Brno University of Technology) dedicated to Automated Optical Inspection for PCBs. Optical inspection of PCBs is a significant area of development in applied informatics in the electronics industry. The work describe theoretical aspects of algorithms used for detecting specific assembly defects of components on printed circuit boards and the practical implementation of a system for automating general visual inspection. The work primarily focuses on cases of missing components, capacitor orientation, and print quality on the board. The proposed system is built on the ROS2 framework. The paper describes various aspects of the development and utilization of the system. An integral part of the work is a publicly accessible dataset comprising over 300 images of PCBs captured using an industrial camera. The conclusion includes an assessment of the contribution of the presented work. Original thesis is available here https://www.vut.cz/studenti/zav-prace/detail/161094 (english)