FM Radio receiver?

Forum 2005-2010 (read only) Hardware Interfacing
1

Alright, so I built this FM transmitter circuit, and had some good success:

http://mikeyancey.com/FM-Stereo-Broadcaster.php

Now I'd like to build a receiver, however the only chips I can find are either ultra-tiny (and no one makes a breakout board) or are scanning-type (I'd like to select the frequency manually using the Arduino). Has anyone had any success with anything like this?

Thanks!

Edit:
Now that I think about it, this guy looks like it might have a programable frequency input (rather than just a search mode), however the spec sheet just confused the hell out of me. Can anyone make heads or tails of the I2C commands for this unit?

http://www.nkcelectronics.com/fm-receiver-module.html

2

there is an application note for that module here: http://www.sparkfun.com/datasheets/Wireless/General/application_note_tea5767-8.pdf

You may find some more info in the sparkfun forum

3

The application note is a little help, however I can't find the software mentioned anywhere. Also, a search for this unit (or just "FM") turns up zero results in the Sparkfun forum.

4

That datasheet does have some info on the i2c messages the chip supports, although there is much more detail here: http://www.nxp.com/acrobat_download/datasheets/TEA5767HN_5.pdff

Both of these (and probably a lot more) found on google :wink:

5

Already read that first. There isn't much about this chip on google - datasheets and linux drivers mostly. Nothing I could find that's written in C++, and as far as I can tell, no previous projects using Arduino or even PIC or basic stamps. So almost nothing for someone who has a less than expert knowledge of I2C.

6

If you can't find sample code for your chip, perhaps try to find an Arduino i2c tutorial with code that you can adapt to your device. The data sheets have the commands you need to send, you could modify a tutorial i2c sketch so that it uses the commands and addresses you need. I2C on the Arduino is not the most intuitive of interfaces, but there are many devices that have been written up.

BTW, I presume you have asked nkcelctronics if they have any code, what did they say ?