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8g Pinout & usage notes
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Weight: 4 g
Depending on the particular module and the application
Logic Level Converter
DTMF MT8870 Audio Decoder Module - DTMF Tone Decoder 7805 8g Pinout & usage notesDTMF (Dual Tone Multi Frequency) is a telecommunications signaling method that uses a combination of two sinusoidal frequencies to generate a dial tone. The MT8870 module is a DTMF receiver that decodes the key pressed on a telephone keypad using a band split filter. A band split filter, as the name implies, splits the consolidated frequencies to identify them. The MT8870 module then converts the DTMF signal into 4 bit digital representing all 16
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