DEVMO MT8870 DTMF Voice Decoder TelephoneAudio Decoder Speech Decoding Module for Arduino

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Description

★onboard MT8870 complex frequency decoding chip, ★onboard voice input interface, ★onboard 5 LED indicator, easy to view the output status, ★Main basic have lead to pin chip., ★PCB size: 26.5 (mm) x24.5 (mm)