There’s a huge market for 433 MHz alarm ... and some code. In his latest video, [Aaron Christophel] shows how easy it can be. In essence, you connect a common 433 MHz receiver module to an ...

For playing the music, it uses the BY8001 MP3 Player module ... your very own Arduino music player and alarm clock have been kindly published by Dejan Nedelkovski with all the code you require.