DTMF MT8870 Hangdekódoló modul telefonmodul
DTMF MT8870 Voice decoding module phone module
 
 
 
 
 
1, on-board decoding chip MT8870 complex frequency
 
2, on-board voice input interface
 
3, onboard five LED indicators for easy viewing output state
 
4, the main chip pins basically have been drawn
 
5, PCB size: 26.5 (mm) x24.5 (mm)
 
 
 
 
 
 
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