I have wrapped up the code that comes with this FM receiver from Sparkfun into a library.
I also took the opportunity to tidy things up a bit and fix the RDS.
Help yourselves....
Instructions and download here: Dr. Monk's DIY Electronics Blog: New Arduino Library for Sparkfun Si4703 FM Receiver Breakout Board
Thanks very much for posting your work. Looking forward to trying this when I get home from my day job.
Take care,
Kevin
That is so cool. I may just HAVE to build one of these into my motorcycle. Let's see, I could put a couple of buttons on the handlebar, route the wires into the headlamp nacelle and get power from the light wires.....weatherproofing, gotta think about that too.
hmmm
Hmmmm. That was a bit of a teaser. Is the station callsign as far as your code has got? Did you leave the rest for homework? Hope more is to follow or did I miss something?
Regards,
Kevin
What is your impression of the quality of reception with this FM receiver ?
code is indeed not complete, can you repost it here ?
TIA,
Rob
Sorry, the call sign is all I have - all I needed for my app.
But if you do the 'homework' I'd love to see the result. 
@Kevin
Sparkfun has some sample code - http://www.sparkfun.com/datasheets/BreakoutBoards/Si4703_Example.pde - far away from a Arduino library but it has quite some functionality in it.
Furthermore there is a PDF mention for fetching RDS data with it - https://support.silabs.com/attach/BCA/BCA-764/35383_AN243%20Using%20RDS_RBDS.pdf -
Helpfull to check traffic jams etc.
I'ved done a lot of playing with the sparkfun code and had no luck with it as has anyone else as far as I have seen posted (here or sparkfun). It's not an easy thing this RDS. I was able to get callsign data out from the sparkfun code with a bit of playing. Glad to see the code posted by Si above.
Back to the drawing board for me I guess.
Take care all.
Kevin
Well all you have to do is look and look again. I went back to the sparfun discussion of this board and someone by the name of "siren" has posted a link to his work. His code is a improved version of the original and it seams to work extreamly well. A link to his work is
Here https://public.me.com/blbarth
Great work Siren.
Regards,
Kevin
Just to add a link to the radio I built using the library at the weekend.
Schematics, sketches and a stripboard layout, just keep following the links: