DTMF_DECODER

Published:2009/6/18 2:44:00 Author:May | From:SeekIC

This DTMF decoder uses a Motorola 68705P3 microcontroller and a 75T202 DTMF receiver (Sil-icon Systems, Inc.). An LCD module is used for the display (MOD1). Switch S1 is used to scroll the display, S2 clears the display, and 53 clears the memory.



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