5 replies to this topic

[remotewizard]

Thanks to the recent snowfall, I've finally had a chance to play with my TDA7313-based audio board that I asked for help with back on http://forums.netdui...board/?hl=eagle.  (And thanks again for everyone's assistance - especially Hanzibal, who has been more than kind!).

 

So far, I've purchased an old wooden radio shell from eBay, relaquered it, added a reproduction grill cloth and decals, and installed a Raspberry Pi, that TDA7313 board, a SparkFun si4703 FM tuner breakout, a digital audio amp, a +5 and a +12 volt power supply, and an old VFD I had in the junkbox. I've attached some snapshots below (and yes, the Raspberry pi is attached to a piece of acrylic with Legos). 

 

If you're interested, you can look at  to see a quick and dirty demo of what I've completed so far.  I used the I2CAdapter class from http://forums.netdui...le-i2c-devices/, the si4703 code from http://forums.netdui...4703#entry18802, and the TDA7313 code from http://forums.netdui...ler/?hl=tda7313.  Next step is to parse out the current song info (using MPC on the rPI) and the FM RDBS code for display on the VFD, and selecting between inputs using a rotary switch. 

 

If I ever get it all working, I'll let you know.

 

Mostly, I'd like to thank everyone who so graciously provided me with code (even if you didn't know it  ).  I could never have gotten this far on my own.

 

 

 

Attached Files

•  RPI0-web.jpg   113.58KB   36 downloads
•  RPI1-Web.jpg   103.66KB   52 downloads
•  RPI2-web.jpg   141.63KB   48 downloads

[NooM]

cool project!

 

 

wich amplifiers are you using?

 

 

greetings

[hanzibal]

Very nice, I love the mix of modern electronics and vintaged radio. Amp looks to be a 2x15 Tripath TA2024 based board like thsi one from SureElectronics:

http://www.sureelect...ods.php?id=1580

Am I right?

It's weird really because Tripath went bankrupt like 6 or more years ago, still it seems some chinese factory kept the "blueprints" and keeps manufactoring these mystified ghostchips...Woahahah :-)

[remotewizard]

That's exactly it!  For the price, it seemed like a really quick and easy solution (although probably overkill for the tiny speakers).

 

Speaking of which: not that you can tell from my sloppy workmanship, but I've used the radio project as a test bed for all kinds of things.  The red cubes are homemade speakers, made using CNC cut plywood from Parts Express and stuffed with fiberfill.  I applied a thin layer of automotive Bondo and glazing putty, in an effort to get a mirror finish on wood.  As you can see, I wasn't entirely successful. 

 

I think I'll try to use a more complete radio next time, with the original vacuum tubes and loudspeaker.  Not as energy efficient, but certainly more fun!

[Captain Colon]

Awesome!  This is something I really wanted to do with my Netduino (haven't gotten a Raspberry Pi yet, lusting after one of those too).  Any plans to do something like add 3G capability (or a way to tether off a connected tablet/cell phone) for mobile use?

[remotewizard]

Glad you like it!  Actually, I can already control the streaming audio on the Raspberry Pi using MPoD on my iPhone; I'll write a proper app to control the whole works when I have the Netduino code finished.  I'm also thingking of getting a junk Philco Mystery Control (http://www.philcorep...y/operation.htm and/or  ) from eBay and turning that into a wireless remote.  We shall see...