Arduino clock with MP3 alarm

Here’s a very nice digital alarm clock using Arduino and VS1053 MP3 decoder board. VS1053b is a single-chip MP3/AAC/-WMA/MIDI audio decoder that contains a high-performance, proprietary low-power DSP processor core VS DSP4, working data memory, 16 KB instruction RAM and 0.5+ KB data RAM for user applications running simultaneously with any built-in decoder, serial control [...]