Make a DFPlayer Mini MP3 Player dog barking machine, to scare burglars.
Make a burglar scare that plays dog bark sound when somebody walk infront of the motion-detector. It will play 30 seconds after last signal from motion-detector. Put the 42 MP3-files with dog bark in the SD-card.
This curcitboard have evrything for play MP3 files from the SD card. It have serial port to communicate to Arduino.
you find it here:
https://www.dfrobot.com/wiki/index.php/DFPlayer_Mini_SKU:DFR0299#Connection_Diagram