DTMF / Decoding Module

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MT8870 DTMF Voice Decoder Decoding Module for Arduino


1, on-board decoding chip MT8870 complex frequency2, onboard five LED indicators for easy viewing output state3, the main chip pins basically have been drawn4, on-board voice input interface5, PCB siz..

VS1053B TF Card Slot MP3 Music Stereo Audio Play Record Decode Board


Features Can play a variety of music formats,support for OGG encoding real-time recording SPI interface,the control signal lines are led out A headphone and stereo outputA microphone for recording A l..

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