In the present document a processing technique is applied to identify the intention of movement in the myoelectric signals, by means of algorithms entered in a microcomputer with a software of free programming that presents a great speed when executing the instructions, with the necessary resources, to replace the PC and thus achieve low costs while maintaining the high quality standard, making the system accessible and reliable for people with low economic resources, while generating greater portability compared to the current prostheses that are handled in Peru, that are mostly made abroad, which increases the cost.