How to interface MT8870 DTMF Decoder with Arduino UNO
Overview of DTMF MT8870 DTMF Decoder Module DTMF (Dual Tone Multi-Frequency) is a signaling technique in telecommunications that uses a combination of two specific tones (pure sine waves) to generate dial tones, commonly used in telephones. The MT8870 is a DTMF decoder that decodes the tones generated by each key press. It provides a 4-bit …
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