Alexa Echo Dot playing local FM radio radio stations using ESP8266 WiFi module, RDA5807 FM receiver module and audio Bluetooth transmitter.
source code (Arduino):
https://github.com/julznc/alexa_esp_fmradio
use ESP32, instead of ESP8266, since it already has built-in bluetooth functionality.
references:
https://bitbucket.org/xoseperez/fauxmoesp
https://github.com/me-no-dev/ESPAsyncWebServer
https://github.com/mathertel/Radio
