Dtmf Decoder Arduino. Mt8870 tone decode ic interfacing with arduino is very simple. Mt8870 dtmf decoder interfacing with arduino uno arduino mt8870 is a dtmf dual tone multi frequency receiver which decodes the dial tone generated from a telephone keypad.
It used in interactive voice response systems ivrs remote control credit card systems etc. You only need a few wires. Your browser does not support javascript.
Dtmf is a dual tone multiple frequency decoder module which has a mt8870 dtmf decoder ic which decodes dtmf tone signal to digital signal that are acceptable for arduino digitally.
Using a ham radio receiver i can switch lights radios computers anything on or off from miles away. Mt8870 dtmf decoder interfacing with arduino uno arduino mt8870 is a dtmf dual tone multi frequency receiver which decodes the dial tone generated from a telephone keypad. The mt8870 decoder ic is integrated with an operational amplifier with user adjustable guard time. Mt8870 dtmf decoder arduino circuit diagram.
