Giới thiệu MT8870 DTMF Voice Decoding Module Phone Module
1. Onboard MT8870 multi-frequency decoding chip
2, onboard voice input interface
3, onboard 5 LED indicators, easy to view the output status
4, the main pin of the chip has been basically introduced
5, PCB size: 26.5 (mm) x 24.5 (mm)
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