12CH Home Controller Phone Control DTMF MT8870

General :
This decoding module is for mobile and fixed telephone voice dialing decoding function ,
has 12 channels, output low level interlock(latch) function,
and leads to STD signal to use as a microcontroller interrupt signal,
very convenient to embed all kinds for mobile and fixed telephone remote remote control,
remote control decoding key value.
12 channels outputs decode mobile and fixed telephone keys (0-9, * #),
12 circuit modules decoded output is a low level control signal,
also has 12 outputs status indication for level signal,
the output state intuitively understand .
 
Interlock function (Latch):

Interlock, it is maintained effective level signal of output ,
until next output effective level, then recover to prevous output level.
 
 
For example:

when the press "1" button on phone, D1 output and maintain a valid low-level control signal;
when press "2" button on phone , D1 recover to original level,
and D2 output and maintain a valid low-level control signal; and so on.

Pin 1: VCC ---- DC +5 V power supply pin;
Pin 2: GND --- power ground pin;
Pin 3: D1 ----- Button 1 decodeding to output low level;
Pin 4: D2 ----- Button 2 decodeding to output low level;
Pin 5: D3 ----- Button 3 decodeding to output low level;
Pin 6: D4 ----- Button 4 decodeding to output low level;
Pin 7: D5 ----- Button 5 decodeding to output low level;
Pin 8: D6 ----- Button 6 decodeding to output low level;
Pin 9: D7 ----- Button 7 decodeding to output low level;
Pin 10: D8 ----- Button 8 decodeding to output low level;
Pin 11: D9 ----- Button 9 decodeding to output low level;
Pin 12: D10 ----- Button 0 decodeding to output low level;
Pin 13: D11 ----- Button * decodeding to output low level;
Pin 14: D12 ----- Button # decodeding to output low level;
Pin 15: STD----- When solving a key value and output to an external,
 
this pin will be changed low from high level, after a period of time and then dropped to low level,
use of the cited feet do microcontroller interrupt signal
 
 
Package Included:

    1 x   12CH Smart Home Controller Voice Phone Control DTMF MT8870 Audio Decoder Module
    1 x   Male to Male audio wire (3.5mm jack )