![]() ![]() When one upper and one lower frequencies mixed then a tone is created and that tone we call Dual Tone Multiple Frequency.ĭTMF 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. In given figure we can see two groups of different frequencies. In simple words by adding or mixing two or more frequencies generates DTMF tone. There are some frequencies that we use to create DTMF tone. DTMF stands for Dual Tone Multiple Frequency. ![]() DTMF controlled Robot runs over mobile DTMF technology that exists in Dial tone. and makes life easy. We are here with our next robot that is Mobile or DTMF Controlled Robot. Robots are a machine which reduces the human efforts in heavy works in industries, building etc. Robots play a very important role in human life. In present time almost all the people are familiar with robots. ![]()
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