https://microcontrollerslab.com/mt8870-dtmf-decoder-module-pinout-interfacing-with-arduino-features/#Pin_Configuration #define PULSE_PIN 8 // The pin on the arduino ...
[Brad] over at LucidScience decided that it would be useful to have a DTMF decoder on hand, and got busy building one. His DTMF decoder box uses a CM8870 DTMF decoder chip, which you might assume ...
DTMF Encoder Decoder is very easy to use the program to decode DTMF dial tones found on telephone lines with touch-tone phones. • DTMF is the global standard for audible tones that represent the ...
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