[en] The report concerns a research conducted in collaboration with SteriaLux (Grand Duchy of Luxemburg), with the aim of designing a micro-processor-drived controller for a solar building. The main control algorithms (eg PID, ...) were developped in Pascal language and tested on a pilot plant in the lab. At the end of the project, a solar installation was simulated on a microprocessor and the controller could be emulated on this virtual installation to test its performances.