[en] An experimental setup based on personal computer suitable for any kind of Moessbauer scattering experiments at room temperature is described. The relative complexity of the equipment required to perform Rayleigh scattering of Moessbauer radiation experiments is a barrier to the routine use of this technique. The experiments of Rayleigh scattering of Moessbauer radiation are difficult essentially due to low brilliance of Moessbauer sources which limit the number of measured reflections. The equipment for Rayleigh scattering of Moessbauer radiation consists of three main parts: a goniometer, a Moessbauer spectrometer and a personal computer. The goniometer, similar to those used in X-ray precision diffractometers, realizes the measuring geometry. On the goniometer there are mounted the electromagnetic vibrator with the Moessbauer source, the scatterer probe, the nuclear resonance absorber, the detector. Nuclear instruments i.e., a driving unit, a digital function generator, a high voltage supply, a spectroscopy amplifier and a single channel analyzer complete the system. A personal computer controls the orientation of the probe, the Doppler movement and realizes the acquisition of the amplitude spectra and Moessbauer spectra by means of three new cards. The probe orientation is realized by the stepping motor card which controls the power supply current feeding delivery for the phases of the stepping motor. A standard multichannel analyzer card provides the amplitude spectra acquisition. In order to register Moessbauer spectra and to deliver 'address advance' and 'start' signals for the function generator, we designed a Moessbauer card, the third card. The performances of the system were tested using like scatterers two types of crystals: lithium fluoride LiF(200) with 10' mosaic divergence and pyrolytic graphite C(002) with a higher mosaic divergence (approx. 1 angle). This experimental setup for Rayleigh scattering of Moessbauer radiation provides the high energy resolution able to distinguish between the elastically and inelastically scattered components at Bragg angles. (authors)