BINARY TONE GENERATOR FOR BLIND


Posted on Feb 6, 2014

When low/high input is voltage in binary form, as obtained from converter circuit (also given in artide) fed by digital voltmeter, circuit produces Iow pitch for binary 0 and high pitch for binary 1 when S2 is set at D for digital voltmeter mode. Recognition of binary digits in tone form can be leamed by blind person much as leaming of Morse code. Uses LM566..


BINARY TONE GENERATOR FOR BLIND
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