DTMF MT8870 Module: Telephone Decoding for Raspberry Pi and Arduino

1, onboard MT8870 frequency decoder chip.

2, onboard voice input interface.

3, onboard five LED lights, convenient to check the output state.

4, the basic has leads to chip, mainly tube feet.

5, PCB size: 26.5 (mm) x 24.5 (mm).

Manufacturer Website