Specifications
MT8870 DTMF Voice decoding module phone module
Product description:
1,onboard MT8870 frequency decoder chip.
2,onboard voice input interface.
3,onboard five LED light, convenient to check the output state.
4, the basic have lead to chip mainly tube feet .
5, PCB size: 26.5 (mm) .5 (mm).
Note: this version PCB design, row needle pin VCC &gnd printing got, please use caution and use it every time!