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General Category => General Discussion - Introductions => Topic started by: Neurox66 on 18:25, 28 April 24

Title: CPCRadio module
Post by: Neurox66 on 18:25, 28 April 24
Hi,
I found this item on Ebay:

https://www.ebay.it/itm/256484367992?itmmeta=01HWJTR9146THRGFS0Q3K074ER&hash=item3bb7a8de78:g:Y1YAAOSwodlmHrIm&itmprp=enc%3AAQAJAAAAwB%2BcVgvEvyAS81wirEV3KuRgYHhMiUO06kPhksF2NM9eTs4YDz4g%2FEoXpbZqujazVgf--bO6XKnD0mE1DyAW0AH74ZCXoHWr0i9P9dcSreS10ciluEYhxEAeS0d3WOzJp%2BdnPTiL5WkrotU8%2FTGfPGfVlM5DFcW9RZqXh6YIZy2s7a1%2B9u94K1L2Smt0bfAD4JtTByYTGJOnkELbT4C9G%2FkmqLjaG8zUEUUTwjXz%2FW1EMTikmm3amNIWjlWd9BAKDQ%3D%3D%7Ctkp%3ABk9SR9iQ4drkYw (https://www.ebay.it/itm/256484367992?itmmeta=01HWJTR9146THRGFS0Q3K074ER&hash=item3bb7a8de78:g:Y1YAAOSwodlmHrIm&itmprp=enc%3AAQAJAAAAwB%2BcVgvEvyAS81wirEV3KuRgYHhMiUO06kPhksF2NM9eTs4YDz4g%2FEoXpbZqujazVgf--bO6XKnD0mE1DyAW0AH74ZCXoHWr0i9P9dcSreS10ciluEYhxEAeS0d3WOzJp%2BdnPTiL5WkrotU8%2FTGfPGfVlM5DFcW9RZqXh6YIZy2s7a1%2B9u94K1L2Smt0bfAD4JtTByYTGJOnkELbT4C9G%2FkmqLjaG8zUEUUTwjXz%2FW1EMTikmm3amNIWjlWd9BAKDQ%3D%3D%7Ctkp%3ABk9SR9iQ4drkYw)

Does anyone know this Radio module for the CPC?
Title: Re: CPCRadio module
Post by: Gryzor on 07:55, 29 April 24
Whaaaat? What's this?!
Title: Re: CPCRadio module
Post by: dodogildo on 08:01, 29 April 24
Seller seems to be the same one whom I recently encountered on Amibay forums:
(Similar gadget, but on Amiga)
https://www.amibay.com/threads/amigaradio-fm-am-radio-receiver-module.2445292/
Title: Re: CPCRadio module
Post by: Gryzor on 08:03, 29 April 24
Pretty awesome... Anyone going to try it?
Title: Re: CPCRadio module
Post by: eto on 08:53, 29 April 24
Quote from: Gryzor on 07:55, 29 April 24Whaaaat? What's this?!
nothing spectacular. It's a FM module that is controlled by the CPC. I would expect a simple address decoding logic activates the FM IC which gets the data from the data bus. The IC does all the radio logic including sound output. 

In short: your CPC controls a radio IC but you won't listen to a radio with your CPC. 


Title: Re: CPCRadio module
Post by: Gryzor on 09:17, 29 April 24
Yes, that much is clear, nobody said it's revolutionary in a technical way, but still .
Title: Re: CPCRadio module
Post by: McArti0 on 09:17, 29 April 24
If the audio output is connected to the sound line on the expansion port, the radio would be heard in the CPC speaker.
Title: Re: CPCRadio module
Post by: Bryce on 11:29, 29 April 24
I suppose it's cool because it hasn't been done before. There are lots of single chip Radio IC's around with digital tuning etc to do this. Unfortunately he doesn't show the other side of the PCB to give it away. I think I would have made a DAB radio though. With an AM/FM antenna that close to a CPC and monitor, you are mainly going to receive the noise coming from the computer.

Bryce. 
Title: Re: CPCRadio module
Post by: Gryzor on 12:19, 29 April 24
Depending on the cost why not both?
Title: Re: CPCRadio module
Post by: Prodatron on 15:48, 29 April 24
Quote from: Bryce on 11:29, 29 April 24I suppose it's cool because it hasn't been done before.
A radio for the CPC has been done already around 2017, it is called SE-One and produced by Hans/TMTLogic. There was both an MSX and a CPC version, I still have the latter one:

seone.png

Beside playing FM radio...
https://www.youtube.com/watch?v=vvlGBS3nNiY
...it was fully compatible to the old MP3MSX hardware (like the SF3 etc.) and so was able to play MP3s as well.

Indeed TMTLogic produced a DAB radio later as well. Unfortunately his website is a little bit limited now, but there are links to a huge Google Docs repository.

There are players for both the FM and the DAB radio hardware in SymbOS, developed by EdoZ:
http://www.symbos.de/appinfo.htm?00053
http://www.symbos.de/appinfo.htm?00052

(http://www.symbos.de/gfx/shots/fmradio1.gif)

(http://www.symbos.de/gfx/shots/dabplus1.GIF)

But I guess it's not compatible to this new hardware.
Title: Re: CPCRadio module
Post by: HAL6128 on 20:46, 29 April 24
All the functions of the radio are also included in the RSF3 (analog & digital) which works easy and great.
Title: Re: CPCRadio module
Post by: GUNHED on 20:52, 29 April 24
Quote from: eto on 08:53, 29 April 24
Quote from: Gryzor on 07:55, 29 April 24Whaaaat? What's this?!
nothing spectacular. It's a FM module that is controlled by the CPC. I would expect a simple address decoding logic activates the FM IC which gets the data from the data bus. The IC does all the radio logic including sound output.

In short: your CPC controls a radio IC but you won't listen to a radio with your CPC.



No, I wouldn't do that either.
Title: Re: CPCRadio module
Post by: Bryce on 13:40, 30 April 24
Quote from: Prodatron on 15:48, 29 April 24
Quote from: Bryce on 11:29, 29 April 24I suppose it's cool because it hasn't been done before.
A radio for the CPC has been done already around 2017, it is called SE-One and produced by Hans/TMTLogic. There was both an MSX and a CPC version, I still have the latter one:

seone.png

Beside playing FM radio...
https://www.youtube.com/watch?v=vvlGBS3nNiY
...it was fully compatible to the old MP3MSX hardware (like the SF3 etc.) and so was able to play MP3s as well.

Indeed TMTLogic produced a DAB radio later as well. Unfortunately his website is a little bit limited now, but there are links to a huge Google Docs repository.

There are players for both the FM and the DAB radio hardware in SymbOS, developed by EdoZ:
http://www.symbos.de/appinfo.htm?00053
http://www.symbos.de/appinfo.htm?00052

(http://www.symbos.de/gfx/shots/fmradio1.gif)

(http://www.symbos.de/gfx/shots/dabplus1.GIF)

But I guess it's not compatible to this new hardware.


Wow, that's a massive amount of components just for a radio! Did it have a whole list of further features?

Bryce.
Title: Re: CPCRadio module
Post by: GUNHED on 14:53, 30 April 24
Quote from: Bryce on 13:40, 30 April 24
Quote from: Prodatron on 15:48, 29 April 24
Quote from: Bryce on 11:29, 29 April 24I suppose it's cool because it hasn't been done before.
A radio for the CPC has been done already around 2017, it is called SE-One and produced by Hans/TMTLogic. There was both an MSX and a CPC version, I still have the latter one:

seone.png

Beside playing FM radio...
https://www.youtube.com/watch?v=vvlGBS3nNiY
...it was fully compatible to the old MP3MSX hardware (like the SF3 etc.) and so was able to play MP3s as well.

Indeed TMTLogic produced a DAB radio later as well. Unfortunately his website is a little bit limited now, but there are links to a huge Google Docs repository.

There are players for both the FM and the DAB radio hardware in SymbOS, developed by EdoZ:
http://www.symbos.de/appinfo.htm?00053
http://www.symbos.de/appinfo.htm?00052

(http://www.symbos.de/gfx/shots/fmradio1.gif)

(http://www.symbos.de/gfx/shots/dabplus1.GIF)

But I guess it's not compatible to this new hardware.


Wow, that's a massive amount of components just for a radio! Did it have a whole list of further features?

Bryce.
Well, well, that's all needed for good music.
However, I still prefer a MP3 player over all radio stuff.
That way I listen to what I do actually like.  :)

BTW: I talked to the producer of the Radio module a while ago and he is going to produce Mother MX4 compatible boards in future.
Title: Re: CPCRadio module
Post by: HAL6128 on 10:49, 01 May 24
Quote from: Bryce on 13:40, 30 April 24
Quote from: Prodatron on 15:48, 29 April 24
Quote from: Bryce on 11:29, 29 April 24I suppose it's cool because it hasn't been done before.
A radio for the CPC has been done already around 2017, it is called SE-One and produced by Hans/TMTLogic. There was both an MSX and a CPC version, I still have the latter one:

seone.png

Beside playing FM radio...
https://www.youtube.com/watch?v=vvlGBS3nNiY
...it was fully compatible to the old MP3MSX hardware (like the SF3 etc.) and so was able to play MP3s as well.

Indeed TMTLogic produced a DAB radio later as well. Unfortunately his website is a little bit limited now, but there are links to a huge Google Docs repository.

There are players for both the FM and the DAB radio hardware in SymbOS, developed by EdoZ:
http://www.symbos.de/appinfo.htm?00053
http://www.symbos.de/appinfo.htm?00052

(http://www.symbos.de/gfx/shots/fmradio1.gif)

(http://www.symbos.de/gfx/shots/dabplus1.GIF)

But I guess it's not compatible to this new hardware.


Wow, that's a massive amount of components just for a radio! Did it have a whole list of further features?

Bryce.
The SE-ONE is not only a simple radio. You can control it via AT command set, there's a MP3 chip for decoding, a audio spectrum analyzer, a dsp hifi audio processor included, different led... .As said, the RSF3 has the same features (not the SF3)
Title: Re: CPCRadio module
Post by: dodogildo on 16:47, 01 May 24
Is a Spotify client doable on CPC? Maybe on RSF3 or M4?
Title: Re: CPCRadio module
Post by: Gryzor on 17:06, 01 May 24
Quote from: dodogildo on 16:47, 01 May 24Is a Spotify client doable on CPC? Maybe on RSF3 or M4?
I guess you would need some sbc to be able to launch a client and then sure, you could control it from the CPC side I expect?
Title: Re: CPCRadio module
Post by: Prodatron on 11:45, 02 May 24
Quote from: dodogildo on 16:47, 01 May 24Is a Spotify client doable on CPC? Maybe on RSF3 or M4?
Not Spotify, but there is a SymbOS webradio client, which works with the RSF3:

Here is a video by DoctorCPC (it was recorded very close to your city :D ):
https://www.youtube.com/watch?v=Y6j99_DHYhI

Not sure, if this works with the SF3 as well.

Quote from: HAL6128 on 10:49, 01 May 24As said, the RSF3 has the same features (not the SF3)
The MP3 part is included in the SF3 as well, but not the FM/DAB radio features.
Title: Re: CPCRadio module
Post by: GUNHED on 16:33, 02 May 24
Dear Admin/Moderator: Please split the topic now.  :)
Title: Re: CPCRadio module
Post by: dodogildo on 21:51, 23 May 24
More information appeared on Amibay, this time on the CPC version:
https://www.amibay.com/threads/cpcradio-fm-radio-receiver-module.2446509/

Screenshot 2024-05-23 at 23.48.54.png
Title: Re: CPCRadio module
Post by: GUNHED on 12:58, 24 May 24
Current version on ebay:
https://www.ebay.de/itm/315385649895?itmmeta=01HYN7E7HDPWQJXRBZQSJEQCDT&hash=item496e731ae7:g:nI8AAOSw4RdmTkIV
Title: Re: CPCRadio module
Post by: p135 on 17:45, 31 May 24
Hi everyone, I'm actually that seller and also the guy on Amibay. I spoke with GUNHED on ebay since he suggested I made a version of the board with a different connector so it could be plugged into an MX4 board.

As some of you already said the CPCRADIO is nothing too fancy, it's just a personal project I really wanted to make for the CPC since I already made a similar module for the Amiga, I'm not planning to make hundreds of these, maybe just a few more if people are interested

At the moment the software is really basic but I'll definitely add a couple more features when I have the time, maybe a way to save a list of presets and an option to close the program and leave the radio playing or put it in standby mode

I'll keep an eye on this thread if you have any questions or suggestions
Title: Re: CPCRadio module
Post by: Gryzor on 17:47, 31 May 24
Quote from: p135 on 17:45, 31 May 24Hi everyone, I'm actually that seller and also the guy on Amibay. I spoke with GUNHED on ebay since he suggested I made a version of the board with a different connector so it could be plugged into an MX4 board.

As some of you already said the CPCRADIO is nothing too fancy, it's just a personal project I really wanted to make for the CPC since I already made a similar module for the Amiga, I'm not planning to make hundreds of these, maybe just a few more if people are interested

At the moment the software is really basic but I'll definitely add a couple more features when I have the time, maybe a way to save a list of presets and an option to close the program and leave the radio playing or put it in standby mode

I'll keep an eye on this thread if you have any questions or suggestions

Welcome mate, so nice to have you here🙂
Title: Re: CPCRadio module
Post by: Bryce on 18:41, 31 May 24
Quote from: p135 on 17:45, 31 May 24Hi everyone, I'm actually that seller and also the guy on Amibay. I spoke with GUNHED on ebay since he suggested I made a version of the board with a different connector so it could be plugged into an MX4 board.

As some of you already said the CPCRADIO is nothing too fancy, it's just a personal project I really wanted to make for the CPC since I already made a similar module for the Amiga, I'm not planning to make hundreds of these, maybe just a few more if people are interested

At the moment the software is really basic but I'll definitely add a couple more features when I have the time, maybe a way to save a list of presets and an option to close the program and leave the radio playing or put it in standby mode

I'll keep an eye on this thread if you have any questions or suggestions


Hey nice to meet you. Out of interest from a hardware side: What receiver chip are you using? And what really interests me: Does it receive anything at all without the external antenna? I would have thought that the random EMF from the Monitor would wash out even the strongest local FM signals?

Bryce. 
Title: Re: CPCRadio module
Post by: p135 on 22:17, 31 May 24
It's using an RDA5807, it's a pretty common receiver chip also found in some Arduino modules. On the board there are a couple of 74 logic chips for address decoding and a parallel bus to i2c interface chip, plus of course a voltage regulator, crystal, and other components.

Unfortunately I don't have an original Amstrad GT monitor to do a test but I'm not having any issues with a similar CRT green phosphor monitor from Philips, I actually found that most of the time the external antenna is just for show, since I'm getting good reception by using the audio cable itself as an antenna, which is the default configuration. When I designed the board I still wanted the option to plug a different antenna if needed so I added a jumper to choose between cable and ext. antenna
Title: Re: CPCRadio module
Post by: McArti0 on 09:50, 01 June 24
@p135 
Do you have audio connected to pin 1 of the expansion port so that you can listen to the radio in the CPC speaker?
Title: Re: CPCRadio module
Post by: p135 on 14:40, 01 June 24
At the moment audio output is only through the 3.5mm jack, I guess this is something I can add in a future revision of the board maybe with an extra jumper to enable or disable it, of course output through the speaker would be in mono.

I'm not sure if it's as easy as adding a connection between the output of the radio chip and pin 1 of the expansion port, I think a few components are required to mix the external signal with the audio coming from the CPC but it's definitely doable, I'll have a look at the schematics later
Title: Re: CPCRadio module
Post by: McArti0 on 17:26, 01 June 24
Quote from: p135 on 14:40, 01 June 24I think a few components are required
I think one resistor. :D
Title: Re: CPCRadio module
Post by: p135 on 01:59, 02 June 24
Quote from: McArti0 on 17:26, 01 June 24
Quote from: p135 on 14:40, 01 June 24I think a few components are required
I think one resistor. :D
I'll do a quick test just to be sure but that would be a pretty easy mod even for existing boards, one could just solder one side of the resistor to pin 1 which is pretty easy to spot and then a wire from the resistor to the left or right channel pin of the 3.5mm jack
Title: Re: CPCRadio module
Post by: GUNHED on 14:37, 03 June 24
Hello! Good to see you here!  :) :) :)

Allow me two questions: Could you tell us which I/O addresses you use for the Radio module? 
(So I can see, if there is any collision with other hardware.)

And how much would be one Radio Module with MX4 adapter and shipping to Europe (Germany in this case)?
Title: Re: CPCRadio module
Post by: p135 on 02:01, 04 June 24
The address range is $FF00 to $FFFF

Tracked shipping to most EU countries is 12€, I usually put these modules in a small package instead of an envelope so I can package them well with some extra bubble wrap

Price for the new boards with the MX4 compatible connector is still 50€, you mentioned an adapter but I actually made a few changes to the layout of the PCB so no adapter is required. I can either solder a 50 pin edge connector or the 50 pin male header that fits into an MX4 female slot. Since I'm only making a few of these they're all hand assembled.

Of course if you want the MX4 version I will send you one with the right connector :)

Do I have to open a different thread in the Classifieds section?
Title: Re: CPCRadio module
Post by: GUNHED on 11:11, 05 June 24
Ah, no. Without an adaptor it's the best solution. You did well in allowing to have a direct MX4 / IDE connector, to be able to place the care on Mother X4 boards.  :) :) :)
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