IOT MP3-Player

thingiverse

This is the case for a small IoT-capable MP3 player I use as a Wi-Fi doorbell. The idea is to have one device that listens for the doorbell, then sends out an UDP broadcast message if it detects a sound, and this little guy plays an MP3 when it receives the message. Of course, you can use it for other purposes too! FreeCAD source file included! Some basic sample code will be available on my blog soon - http://blog.digidigtal.de. BOM: 1 x D1 mini ESP8266 (e.g. from Aliexpress) 1 x DFPLAYER MP3 module (e.g. from Aliexpress) 1 x 20mm x40mm 8 Ohm 2W Speaker (e.g. from Aliexpress) 4 x M3 x 10mm screws/bolts (e.g. from Aliexpress)