DIY micro tower (desktop version)

You can always make a PCB V2 that conforms to the schematic 100%.

In this version, an IR remote control with TSOP31238 is designed, because the idea was to use the IR to change the otwy. The connector for the encoder can be added as much as possible.

Greetings ...

It used to be that everything was on isostats and people were happy

Efi222 so it would be good to specify the hardware (as it was for the radio (Robgold's colleague) to make a universal PCB - you can design IR but not necessarily use it in software (for the time being).

Greetings....

Added after 1 [minute]:

efi222 wrote:

It used to be all on isostats and people were happy

Probably especially from the telegraph 😀

But times are rightly past.

Nowadays without the net you can't move 😀

Greetings ...

There are quite a few free pins in the ESP32, in the spectrum circuit. I will test some free one to be sure and add it to the schematic.

O this would then be everything + a UART connector for using this as an attachment for mate ejcon's radio mods in the internet radio topic.

Regards...

I'm thinking of a slightly different IR control.
IR in the amplifier only (there is an Atmega with free rework). And from it make a UART bus with commands to the other modules. The distances are not great, so there is a chance to make it work.

But that would involve a cable connecting all the blocks, like Technics towers used to do. Isn't it better to give receivers in each pad and assign different buttons to each pad.

Simple and without unnecessary connections except for power and Chinch.

Greetings....

>>21901774
Time will tell. As of today, it is "a song of the future"....

But design at some pin already 😀

Greetings....

efi222 wrote:

A pity because the printer makes the job easier. (...)
Of course, plastic prints are not suitable for all structures and will not replace more durable steel or aluminium components and housings. Well, but something for something.

For those who don't print. Photos of the raw housing for the radio with sides. Now you have to turn on manual beautification mode

Well that's what makes it easier, but of the above mentioned I don't really like printing and still don't own a 3D printer.
I prefer to tinker in aluminium or other metal, or possibly wood or plastic.

By the way, as I've only just now paid attention.
It would probably be more appropriate for the left to be on the left and the right to be on the right.

tytka wrote:

And by the way, as I've only just now paid attention.
It would probably be more appropriate for the left to be on the left and the right to be on the right.

Of course . Already reported by someone commenting. I need to swap the CS wires of the displays. I'm not going to take a new photo anymore. It's poor at photographing glass panels, LEDs and luminescent elements and it takes some time.

>>21899218 Hi, great work. I wanted to ask in turn how exactly those buttons with the white AUX/RADIO/BT lettering were created. Is this a two-colour print or did you somehow fill or tape the PLA board? I'm looking for a method to make illuminated lettering that is resistant to abrasion, like the buttons on car radios.

>>21901997
The buttons are a printout. I print the button lettering on a laser printer, on glossy adhesive paper (matte can probably work too).
Before gluing, I heat the printout with hot air until the toner starts to shine. I wonder if this is necessary. I use the heating procedure for information stickers, e.g. socket descriptions on the back of the case. The toner is then more resistant to abrasion.


I apply the sticker to the button. It is a little larger. I trim off the excess with scissors. Then I sand the edge with a flat fine needlepoint. After this procedure, the white paper of the sticker will appear on the edge because the toner will come off by the way. I retouch this with a black marker. Finally, a matt clear varnish.

In the photo a considerable enlargement. Inscription height 2mm.

I thought about illuminated buttons, but nothing sensible came to mind

@efi222 I'm trying it on with Mechanic UV varnish. I already have a few colours in stock. (Black, green, white). Initial trials look encouraging... Even a description of the front panel can be done.

Beautiful - there has always been a problem with front panels. I still have that simple power supply, I'll make a panel for it now. It's on 13.8V, but I'm planning to add a potentiometer with regulation around 12V to test different ones.

ArturAVS wrote:

It is even possible to make a description of the front panel.

And this is interesting..., because front panel lettering is also a bad dream....

efi222 wrote:

the captions on the front are also a bad dream...

If it weren't for the fact that my printer has "gone rogue", i.e. under Linux it doesn't "work", I'd show samples. Roughly, on tinted Plexi, and applied with a soft rubber roller varnish, after UV exposure through film (similar to PCB photochemistry); https://www.elektroda.pl/rtvforum/topic3937477.html#20307992 Looks like screen printing.

DJCheester don't you happen to have gerbers for these boards? I already have the radio and would love to add this analyser to the set🙂 .

I did my usual thermal transfer



But there will be a gerber for that too

Take a look here you can see how it works

https://www.elektroda.pl/rtvforum/topic4041603-2670.html#21902391

Greetings....

Honestly? It looks great!
A perfect combination of modernity, style and ... and illusion (because I still see a tarnished etched metal panel, wood sides, not 3d printing and ready-made digital modules)
On the one hand - nothing special, some ready-made layouts, printing, veneers.
All replicable (all the more chapeau bas for the details) without any cosmic technology or cost.
It is also possible to realise a balanced functionality (even partially) or move to a different aesthetic on the cheap.
On the other - sensible choice of 'equipment' and materials, perfect details, successful cinematography (if it wasn't for the video, I would have thought it was a 'humanised' render).
And that dark glass in the "metal" - neatly offsets the shortcomings of these LCDs (greying blacks, bezels, etc.).
For the full so-called experience, a photo "from the back" is missing.
I know that it can be connected in a working way, i.e. practically.
But you might as well make these connections in the style of the rest - i.e. thoughtful, evocative and pleasing to the eye.
Even if they were to pretend to be audiophile analogue.
Looking at the details on the front or the author's other design (I would call it a "contemporary interpretation of nixie tubes") - I am convinced that this stage could be an excellent complement to this design.
And, if you can ask for more photo-video, video not only static, but also such a front-to-back or even 360° presentation

>>21903039
I'll say this: I don't even know what to write back.
I didn't expect such a review. Very interesting description. Thank you for your words of appreciation.
I will try to prepare more material and publish

>>21903052
A review would be if I had used or even seen it live.
And as if I were someone known in the environment, and I am just a passive observer
Here it is - just an opinion and the proverbial pat on the back, because more, via the internet, is not possible.
If you upload anything else, I'd be happy to review the material.
And it's nice to hear that a few of my words provide some value and motivation for you. Thanks for your reply

I like this radio and I think I will make one .Just one question about the spectrum because I see you made it on esp32 but on wifi board only and if I have esp32 board but the extended one will the spectrum also go on this board and do I have to make the preamp according to your schematic or can I put some ready made one and the question is about the radio as for esp32 . And I have a request if it would be possible to get the code to print the housing , radio , spectrum and amplifier thank you very much in advance.

>>21903129
You can use any modules you like. Developers or development boards. Development boards often have differently labelled I/O pins. My schematics show the original GPIO port designations.
You need to look up how the port names are mapped on the development boards you acquire.

Spectrum: ESP32-Wroom-32D or older ESP32 Wroom-32.
Radio: ESP32 S3 1NR16R8
For stl files get back to me on priv.

The schematic of the amplifier is not in this topic. There is only its touch switch and the power supply for the other modules.
You can make the amplifier as you like.

A beautiful realisation indeed. It's been a long time since we've seen something of a similar level of workmanship here. It looks like a product from a hi-fi shop.

efi222 wrote:

It is possible as long as the sound source sends this information.

I was thinking of building a USB DAC and/or BT module inside. So in theory it should probably be possible. But it's just an afterthought, I don't have much experience in the subject, so I don't know if I'd be able to do something like that, because without a CPU it's unlikely to work

Regards,
A.

Beautiful. Simply beautiful. The only thing I would miss would be the station selection/approval menu by pressing the knob (unless turning the knob without entering the menu changes the station).
What is the cost of such a set for friends?

cranky wrote:

confirmation of the station by pressing the knob

I deliberately dispensed with mechanical buttons because of the low weight of the turret The whole thing weighs 1.3 kg. With such a weight, pressing the encoder moves the gear. You would have to hold it. This is why the operation is tactile. The video at the end of the article shows, among other things, the operation of the radio. It is operated very comfortably in my opinion

Added after 5 [minutes]:

cranky wrote:

What is the cost of such a set for friends?

I'll admit that I haven't even counted the parts yet. But they are not cosmic costs.

efi222 wrote:

because the lettering on the front is also a bad dream...

The lettering on the front can be engraved with either a cutter or a laser.
Here the cutter in aluminium completed with paint:



Here, milling cutter on aluminium painted black:



And here an attempt at laser engraving on engraving laminate:

tytka wrote:

The inscriptions on the front can be engraved with both a cutter and a laser.

Unfortunately, I own neither. This looks very good. The cutter is more for hard surfaces. I wonder if such a laser would pass the test on, for example, self-adhesive foil such as is on the front of the turret from this topic. There is black plastic underneath it. It seems that it should. The thickness of such a foil is about 0.1 - 0.15 mm.