[maemo-developers] FM RDS data

[From: Martin Grimme]

Hi,

the FM receiver's interface for RDS is exposed via sysfs. So any
application can read RDS data from it.
The frequency bands the receiver is capable of are US/EUR (87.5 -
108.00 MHz) and Japan (don't remeber, but I think starts somewhere at
70 MHz). A region switch in the driver (sysfs-Interface again but as
root) switches between the frequency bands.


Martin


2010/1/6, Aldon Hynes <Aldon.Hynes at orient-lodge.com>:
> I have been approached by a person interested in sending data from a sensor
> via FM to a cellphone which would in term transmit this data to the
> Internet.  I am interested in figuring out if this is something that could
> be done with an N900.  With that, I have a few specific questions:
>
> First, can anyone point me to information about how to programatically
> receive RDS data?  I've read that the FM receive app is supposed to do that,
> but I haven't managed to receive RDS data that way yet, and I don't have the
> source code.
>
> Second, does anyone have any idea what frequencies the FM receiver can tune
> into?  The programs I've seen have focused on the traditional commercial FM
> band, 88 Mhz to 106 Mhz.  Can the FM receiver tune in higher or lower
> frequencies?  If so, what is the real frequency range of the FM Receiver.
>
> Third, are there other data formats that can easily be sent and/or received
> from the Nokia phone?  If so, can people point me to any of these other data
> formats?
>
> Any help you can provide would be greatly appreciated.
>
> Aldon
>
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