Comments on: Building a Wifi Radio – Part 8, Adding a Tuning Control http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/ Join the resistance. Fri, 12 Mar 2010 10:16:27 -0800 http://wordpress.org/?v=2.9.2 hourly 1 By: Gordon Stewart http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-4519 Gordon Stewart Sun, 17 May 2009 14:31:02 +0000 http://mightyohm.com/blog/?p=1148#comment-4519 This is exactly what I'v been looking for! I have several old wooden antique radio's and my intention was originally to get them working someday replacing the tubes and capacitors. Then I thought a streaming radio in an antique chassis would be soooo cool. perhaps when I get this completed I will post photos of the project. Thanks This is exactly what I’v been looking for!
I have several old wooden antique radio’s and my intention was originally to get them working someday replacing the tubes and capacitors. Then I thought a streaming radio in an antique chassis would be soooo cool.
perhaps when I get this completed I will post photos of the project.

Thanks

]]> By: Cyk http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3757 Cyk Thu, 16 Apr 2009 13:01:08 +0000 http://mightyohm.com/blog/?p=1148#comment-3757 Thanks Jeff! Very good! Thanks Jeff!

Very good!

]]> By: Jeff http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3726 Jeff Tue, 14 Apr 2009 06:09:56 +0000 http://mightyohm.com/blog/?p=1148#comment-3726 Hey guys - I created a forum for this project over here: http://mightyohm.com/forum/viewforum.php?f=2 I am hoping that the new forums help to facilitate better discussion than the comments section on the blog. They should at least help keep the crosstalk interference from multiple discussions down. Sorry it took so long, I should have set forums up when I originally started posting this stuff. Check them out and let me know what you think. 8-) Hey guys – I created a forum for this project over here: http://mightyohm.com/forum/viewforum.php?f=2

I am hoping that the new forums help to facilitate better discussion than the comments section on the blog. They should at least help keep the crosstalk interference from multiple discussions down.

Sorry it took so long, I should have set forums up when I originally started posting this stuff. Check them out and let me know what you think.

8-)

]]> By: Scott Robinson http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3699 Scott Robinson Sun, 12 Apr 2009 19:28:04 +0000 http://mightyohm.com/blog/?p=1148#comment-3699 Thanks for that! After looking at it i managed to get a WL520GU for around £40 which isn't too bad! Were trying to find the cheapest way of getting our university radio station into the halls of residence! Theres 7 halls altogether so were trying to find the cheapest way! This seems like the perfect idea! Thanks for that! After looking at it i managed to get a WL520GU for around £40 which isn’t too bad!

Were trying to find the cheapest way of getting our university radio station into the halls of residence! Theres 7 halls altogether so were trying to find the cheapest way! This seems like the perfect idea!

]]> By: Cyk http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3696 Cyk Sun, 12 Apr 2009 16:46:41 +0000 http://mightyohm.com/blog/?p=1148#comment-3696 Scott, take a look at the new La Fonera 2.0. It will support USb soundcards and 3G sicks out of the box. And it runs OpenWRT. I'll cost 50 Euros. I don't know of any other router with USB that is cheaper than that. I paid 51 Euros for my WL520GU. Scott, take a look at the new La Fonera 2.0.
It will support USb soundcards and 3G sicks out of the box.
And it runs OpenWRT.
I’ll cost 50 Euros. I don’t know of any other router with USB
that is cheaper than that.
I paid 51 Euros for my WL520GU.

]]> By: Scott Robinson http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3693 Scott Robinson Sat, 11 Apr 2009 22:31:55 +0000 http://mightyohm.com/blog/?p=1148#comment-3693 Thanks for a pretty amazing blog here! Great use :) Two things. A) Do you know of any cheaper routers that would work the same? Couldn't see any.. Its around £55 just for the router over in England! :( B) When's part 9 about? Im looking forward to it :P C) Whats your opinion on getting a 3G modem into it aswell? The ideas work in my head.. I'm sure you can see where im going with that! Thanks for a pretty amazing blog here! Great use :)

Two things.

A) Do you know of any cheaper routers that would work the same? Couldn’t see any.. Its around £55 just for the router over in England! :(

B) When’s part 9 about? Im looking forward to it :P

C) Whats your opinion on getting a 3G modem into it aswell? The ideas work in my head.. I’m sure you can see where im going with that!

]]> By: Cyk http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3640 Cyk Fri, 03 Apr 2009 11:54:45 +0000 http://mightyohm.com/blog/?p=1148#comment-3640 22bsti, as you might have noticed, I've posted a simple solution to use the EZsetup button as a very simple user interface. We have only 4 gpio's available on the board: Power LED, wifi LED, EZsetup button and reset button. All others are either dedicated to the hub or not routed. Shurely this would be enough for back/forth and volume up/down, but not for an LCD. You could use an I2C or SPI IO expander, but these things are more expensive than a microcontroller, and require a lot of work for the kernel driver. In this case, Jeff's solution is much easier. Nevertheless, I want to convert an old tube radio to a web radio. And I want to use the original dial to select the stations. Therefore I have to read in a potentiometer. I could use a microcontroller, as I have lots of the lying around, and know how to write the software, but I have the ambition to use only one gpio for this. It is possible, but would require to write e very special and timing critical kernel driver. If also have some other user interfaces in mind. If you want, let's work together. But I propose that we use a more comfortable form of communication. A forum would be fine. 22bsti, as you might have noticed, I’ve posted a simple solution to use
the EZsetup button as a very simple user interface.
We have only 4 gpio’s available on the board:
Power LED, wifi LED, EZsetup button and reset button.
All others are either dedicated to the hub or not routed.
Shurely this would be enough for back/forth and volume up/down,
but not for an LCD. You could use an I2C or SPI IO expander, but
these things are more expensive than a microcontroller, and require
a lot of work for the kernel driver. In this case, Jeff’s solution is much
easier.
Nevertheless, I want to convert an old tube radio to a web radio.
And I want to use the original dial to select the stations.
Therefore I have to read in a potentiometer. I could use a microcontroller,
as I have lots of the lying around, and know how to write the software,
but I have the ambition to use only one gpio for this.
It is possible, but would require to write e very special and timing critical
kernel driver.
If also have some other user interfaces in mind.
If you want, let’s work together.
But I propose that we use a more comfortable form of communication.
A forum would be fine.

]]> By: 22bsti http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3634 22bsti Fri, 03 Apr 2009 05:57:57 +0000 http://mightyohm.com/blog/?p=1148#comment-3634 I have been following this for awhile and it seems to me that it would be less work to just use the GPIO's on the board and have them make mpd change stations and increase/decrease volume. That is the route I will end up going. I have been following this for awhile and it seems to me that it would be less work to just use the GPIO’s on the board and have them make mpd change stations and increase/decrease volume. That is the route I will end up going.

]]> By: Cyk http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3624 Cyk Wed, 01 Apr 2009 12:24:19 +0000 http://mightyohm.com/blog/?p=1148#comment-3624 Lordxtra, maybe it's easier for you to wait for the new fonera 2.0 router. It already contains a mp3 player and will cost only 50 Euros. But nevertheless, also a WL520GU will work. I as well need a configuration that will work as wifi or ethernet client. I'll try it soon and post the files here. Lordxtra, maybe it’s easier for you to wait for the new fonera 2.0 router.
It already contains a mp3 player and will cost only 50 Euros.
But nevertheless, also a WL520GU will work.
I as well need a configuration that will work as wifi or ethernet client.
I’ll try it soon and post the files here.

]]> By: Lordxtra http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3621 Lordxtra Tue, 31 Mar 2009 17:26:41 +0000 http://mightyohm.com/blog/?p=1148#comment-3621 Well you guys are way beyond me...but can anybody do this type of thing for us (small communuity station in spain( where we can have an ambedded stream receiver that connects to the internet via a standard rj45 as opposed to wireless. This would really let us expand as we exploit using the smallest power possible to remain legal and could add some additional transmitter stations if we could just receive the inet stream. Maybe some of you could offer a solution. Thx and RGZ from Spain LX Well you guys are way beyond me…but can anybody do this type of thing for us (small communuity station in spain( where we can have an ambedded stream receiver that connects to the internet via a standard rj45 as opposed to wireless. This would really let us expand as we exploit using the smallest power possible to remain legal and could add some additional transmitter stations if we could just receive the inet stream.

Maybe some of you could offer a solution.

Thx and RGZ from Spain

LX

]]> By: Cyk http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3612 Cyk Mon, 30 Mar 2009 12:29:47 +0000 http://mightyohm.com/blog/?p=1148#comment-3612 Some additions: Mpd uses by default the fastest sample rate converter. This produces audible artefakts. The slower ones give much better sound quality. Nevertheless, I still hear some loud clicks here and there. This happens only on the WL520GU, not on a NSLU2. I don't know if this comes from mpd, from the USB audio driver or from the kernel itself. Some additions:
Mpd uses by default the fastest sample rate converter. This produces audible
artefakts. The slower ones give much better sound quality.
Nevertheless, I still hear some loud clicks here and there.
This happens only on the WL520GU, not on a NSLU2.
I don’t know if this comes from mpd, from the USB audio driver or from
the kernel itself.

]]> By: Jeff http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3609 Jeff Mon, 30 Mar 2009 00:03:28 +0000 http://mightyohm.com/blog/?p=1148#comment-3609 Cyk - Thanks for the tip. I know that not all USB-audio adapters are alike. Some won't work at all! Tuven - Thanks for measuring the current consumption, something I have been meaning to do for a while now. That is considerably less than the 2A rating on the wall wart. Very encouraging for portable apps. Cyk – Thanks for the tip. I know that not all USB-audio adapters are alike. Some won’t work at all!

Tuven – Thanks for measuring the current consumption, something I have been meaning to do for a while now. That is considerably less than the 2A rating on the wall wart. Very encouraging for portable apps.

]]> By: Tuven http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3580 Tuven Fri, 27 Mar 2009 22:35:11 +0000 http://mightyohm.com/blog/?p=1148#comment-3580 Hello I have been playing whit solarpanels to get the Asus 520gu running in remote places, so i have been measure a lot, And my measurements are following: ASUS 520GU: min 290mAh=1.5w/ max 390mAh=2w @5.2v, The min value is when the router is only connected to the main router wireless, The max are when one client is attached wireless and downloading in full speed. But your values may be different. Hello

I have been playing whit solarpanels to get the Asus 520gu running in remote places, so i have been measure a lot,

And my measurements are following:

ASUS 520GU:

min 290mAh=1.5w/ max 390mAh=2w @5.2v,

The min value is when the router is only connected to the main router wireless,
The max are when one client is attached wireless and downloading in full speed.

But your values may be different.

]]> By: Cyk http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3529 Cyk Mon, 23 Mar 2009 21:31:24 +0000 http://mightyohm.com/blog/?p=1148#comment-3529 One tip: If you hear clicks and sudden dropouts in the audio output, open /etc/mpd.conf and change the sample rate of /dev/sound/dsp from 44100:16:2 to 48000:16:2. It solved my problems. --- Cyk One tip:

If you hear clicks and sudden dropouts in the audio output,
open /etc/mpd.conf and change the sample rate of /dev/sound/dsp
from 44100:16:2 to 48000:16:2.
It solved my problems.

—
Cyk

]]> By: Cyk http://mightyohm.com/blog/2009/02/building-a-wifi-radio-part-8-adding-a-tuning-control/comment-page-2/#comment-3515 Cyk Sun, 22 Mar 2009 21:06:12 +0000 http://mightyohm.com/blog/?p=1148#comment-3515 Too bad that the blog software destroys the layout of the script files. I've put them on pastebin: mpd start script: http://pastebin.com/f3db2f266 hotplug button script: http://pastebin.com/f67ebf872 Too bad that the blog software destroys the layout of the script files.
I’ve put them on pastebin:

mpd start script:
http://pastebin.com/f3db2f266

hotplug button script:
http://pastebin.com/f67ebf872

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