“Clock radio using the RDA5807M and RTC DS1302
I liked the original radio design and use of the miniature RDA5807M Stereo radio module and decided to modify the code and add a clock to the design. After trying to use RDS I realised I needed a way to show the time when the radio is off.. (maybe later adding an alarm to turn it back on).. so I used the RTC DS1302 module to show the time instead. In this project, I assume the DS1302 is already set to the correct time ( covered in the library examples).”