. generated by walking on a suitable carpet) near the interface,
because discharges cause easily decoder or PC crashes and could
theoretically even harm the hardware (the MAX232 is a CMOS chip as are
some of the chips in the decoder). And please doublecheck everything I
have written here, because I don't want to be responsible if anything
goes wrong just because I wrote something wrong. DON'T USE THIS DESIGN
IF YOU DON'T UNDERSTAND IT.