ISD1820 Voice Recording Playback Module

Recording and playback control mode: button control or single-chip microcomputer, control line IO has been led;

Button control recording and playback operation method: 

REC button: Record button, press and hold to record, release button to stop recording; 

play button: trigger mode playback, press to play the current entire segment of the voice; 

play button: jog mode put Tone, press and hold to play, release to stop playback; 

RPL jumper: loop playback mode control, can be played cyclically; 

FT jumper: through control, can make microphone voice through to the speaker playback;