Birdhouse with

• ESP 8266 Wemos D1
• DFPlayer
• Crowtail PIR sensor

When PIR detects movement it plays a random bird audio clip with random volume.

Front: spearker in the upper hole, PIR in the lower:

Powered with micro-USB charger connected directly to Wemos D1:

Back side is left open in order to reach the microSD card and other components:

Microcontroller and DFPlayer:

1. Create a FAT-formatted partition (i.e. a "regular Windows formatted drive")
2. Place the audio clips (bird voices) to the root directory. The file names must begin with four digits like this:
   • 0001kingfisher.mp3
   • 0002pipit.mp3
   • 0003hawkowl.mp3
   • ...
   • 0010alpinethrush.mp3
   • 0011asianbarredowlet.mp3