Resumen
A device accessible to blind people for studying the operation of an edge-triggered synchronous D bistable electronic circuit comprising: - an edge-triggered synchronous D bistable electronic circuit composed of a level-triggered synchronous D flip-flop and a level-triggered synchronous RS flip-flop connected in cascade after negating the enable input for the second flip-flop using an inverter, - a layer of non-embossed ink including magnetic markers and explanatory texts of all the elements that make up the circuit and the interconnections between them, - a transparent embossed layer with the texts of the ink layer translated into Braille, - movable elements depending on the evolution of the logic signals present in the connections between logic gates, - connecting wires between the NAND logic gates of each flip-flop and the inverter through which the electrical signals circulate, characterized in that some movable elements have a flat piece on the top and other movable elements have a hollow cylindrical piece, depending on whether they represent logic element 1 or 2. logic element 0, respectively. (Machine-translation by Google Translate, not legally binding)