I've done a Wifi radio with a headless Raspberry Pi in the past (connecting a radio MP3 stream available on internet directly on boot, without any user input), and now I'm wondering: would it be possible to do the same with an Arduino, battery-powered?
Please correct me if I'm wrong but it seems that all these features are available:
battery-powered: this is definitely possible with a few AAs
audio output (easily possible with a DAC I think?)
Wifi (possible with a shield, right?)
Internet access to http://198.51.100.0/myradio.mp3 stream
real-ime MP3 stream decoding (Is an Atmega enough for this?)
Does this mean that a Wifi radio based on Arduino is possible?