DEVMO MT8870 DTMF Voice Decoder Telephone/Audio Decoder Speech Decoding Module Compatible with Ar-duino

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)

1, onboard MT8870 complex frequency decoding chip

2, onboard voice input interface
3, onboard 5 LED indicator, easy to view the output status
4, the basic chip has been the main pin leads
5, PCB size: 26.5 (mm) x24.5 (mm)
Note: This version of the PCB design, pin-pin VCC and GND of the silk screen to engage in anti-use, please use with caution.
Shipping list:
MT8870 DTMF voice decoding module x 1

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