This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Ap ...
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标签：
Decoding
DTMF
with
PIC
上传时间：
2013-11-21
上传用户：zhaoke2005
