This thesis is devoted to the development of software for reading data through the COM port from microcontrollers, their visualization and storage. The main goal is to create a convenient tool for developers, which will allow to effectively manage the data coming from microcontrollers. The developed ap plication will contribute to fast and reliable reading of data, their display in an understandable format and the possibility of storage for further analysis. The work is relevant in the context of the growing use of microcontrollers in various industries such as IoT, electronics and automation. Using the developed software will simplify the development and management of projects that use micro controllers for data collection.