In this thesis I focus on selected applications of embedded systems with emphasis on implementation of communication interfaces. This thesis focuses on the realization of part of ALICE detector control system within CMMRaPI cooperation with the ALICE collaboration at CERN. It deals with the implementation of software applications for the acquisition, processing and aggregation of data within the development of the new DCS system of the ALICE experiment at CERN. The thesis also focuses on the implementation of communication interfaces within the application of the robotic soccer of the MiroSot category and the overall modernization of the ball on the plate model, focusing on hardware development, implementation of communication interfaces and control algorithm design. Last but not least, the thesis deals with the design and implementation of a modular mobile robotic system, focusing on the design of hardware components, implementation of software modules for robot control and control algorithm design for the motion control.