pi based systems

[Pascal Hibon]

Looks good, it's inspiring me to upgrade too. Could I ask where you source your library power supplies and the specs? Thanks

Thank you!

I made the power supply PCB's myself. These where created for another project a couple of years back. And since I still had a few bare PCB's available I used those. The power supply is built around the LM350 (or NTE1929 is also an option). These are 3A adjustable regulators. Both PCB's, which are stacked upon each other by means of 45 mm standoffs, are set to output 5 volts.
The toroid transformer has two secondary windings, one for each power supply board.


The small PCB behind the transformer in the image is a 12 volts trigger input. The player can be switched on and off by a remote device.

[kingswindsor]

Thank you!

I made the power supply PCB's myself. These where created for another project a couple of years back. And since I still had a few bare PCB's available I used those. The power supply is built around the LM350 (or NTE1929 is also an option). These are 3A adjustable regulators. Both PCB's, which are stacked upon each other by means of 45 mm standoffs, are set to output 5 volts.
The toroid transformer has two secondary windings, one for each power supply board.


The small PCB behind the transformer in the image is a 12 volts trigger input. The player can be switched on and off by a remote device.

[ATTACH]31974[/ATTACH]

Good info, thanks Pascal but you are more advanced than I am! I am not at the stage of building one myself at the moment but is there a commercially available alternative that might be used/adapted? Switched power supplies are obviously generally available but linear power supplies to plug in and integrate seem to be difficult to find off the shelf. I do have an iFi power supply for one piCorePlayer but only noticing marginal improvements if any (but certainly no complaints).

[Pascal Hibon]

Good info, thanks Pascal but you are more advanced than I am! I am not at the stage of building one myself at the moment but is there a commercially available alternative that might be used/adapted? Switched power supplies are obviously generally available but linear power supplies to plug in and integrate seem to be difficult to find off the shelf. I do have an iFi power supply for one piCorePlayer but only noticing marginal improvements if any (but certainly no complaints).

It is not necessary to build your own power supplies; there are other options readily available. For example, a search on ebay resulted with this: https://www.ebay.com/itm/LT1083-Adju...-/324221756444

There are also a lot of very good switched mode power supplies available too. Technology has come a long way and most of them are pretty quite. The key thing in this build was to separate the RPI and display from the audio parts. The RPI for example adds some noise to the power supply rail due to its processor operating.

[myke2k7]

FitnessPi

[Grumpy Bob]

I've put together a Pi-based server which I use as a test server and as a (relatively) portable server which I take with me when visiting family.

It's based on a Raspberry P 3B with a 2Tb SSD drive which carries a copy of my main library. I went through several iterations of this case, which used the main case body from an unused media player that I had kicking around the house. I don't much care for screens or glowing LEDs, so this is a bit Hotblack Desiato (who as I recall had a particularly black spaceship), though I did fit a red LED momentary switch on the rear of the unit. The momentary switch operates via an OnOff SHIM which connects via GPIO pins.
The front plate attaches via magnets so it can be easily detached to allow access to the SSD drive. The microSD card is mounted via a ribbon cable adapter so it's accessible without opening the case.

This server runs on pCP 6.1.0 and LMS 8.0.1. It isn't used as a player and I generally use the web interface and the Material skin to control it.



Robert

[Greg Erskine]

Cool!

What sort of temperatures do you get using a sealed housing?

[Grumpy Bob]

Cool!

What sort of temperatures do you get using a sealed housing?

After several hours, it feels barely warm to the touch. The main body is aluminium, and the end plates are perspex, also there's a fair bit of space inside for air to circulate.

Robert

[wtnh]

My latest piCorePlayer build...



The chassis came from Modushop in Italy and I had them custom CNC machine the front panel. The encoder knob is set up to allow navigation of the Jivelite display.

Inside the box is a Pi 3B+, a 3.5" Osoyoo DSI touch display, the encoder, a 5 Volt linear supply, and a Khadas Tone 1 USB DAC.



The rear of the chassis has the RCA outputs, a WiFi dongle with an antenna, and an RF remote dongle.



I really like the Khadas DAC. You can see a review of it here.

[Howard Passman]

Really nice work and a good looking unit. And you left yourself some room.

My current player is made from scraps of black walnut from a guitar I made 30+ years ago, a Glow Amp DAC that came free with the amplifier and an old RPI3.Not quite done yet. Need to finish the case and mount the IR sensor. Very tight interior. Because of the size it took me a lot longer than anticipated. The acrylic one was much easier :-) See bottom.

Happy Listening.

Howard

My latest piCorePlayer build...

[ATTACH]33686[/ATTACH]

The chassis came from Modushop in Italy and I had them custom CNC machine the front panel. The encoder knob is set up to allow navigation of the Jivelite display.

Inside the box is a Pi 3B+, a 3.5" Osoyoo DSI touch display, the encoder, a 5 Volt linear supply, and a Khadas Tone 1 USB DAC.

[ATTACH]33687[/ATTACH]

The rear of the chassis has the RCA outputs, a WiFi dongle with an antenna, and an RF remote dongle.

[ATTACH]33688[/ATTACH]

I really like the Khadas DAC. You can see a review of it here.

[gmarin]

Informations requets

Here are some Pics of my last project.

• Hardware
  • RaspberryPi 1 A+
  • HifiBerry DAC+
  • TPA3116 amp
  • Meanwell 15V / 75W switching power supply
  • DC/DC step-down converter
  • Waveshare 4,3" HDMI touch display
  • homemade circuit board with 74HC595 shift register and relay
  • rotary encoder
  • 8 blue LEDs for volume and pause/stop status display
  • aluminum case from china
  • a cnc milled front plate

• Software
  • PiCorePlayer 4.1.0
  • Jivelite
  • LMSTools
  • pikeyd
  • a homemade python script for controlling the shift register, the 8 LEDs and the relay

PiPlayer

Hi can you share the prog and the schema for the rotary encoder?
regards

[piPlayer]

Hi can you share the prog and the schema for the rotary encoder?
regards

Hello,
after a few software updates, I am now using the SqueezeButtonPi daemon instead. Link
I would also recommend you to work with it because there is an official extension for PiCorePlayer.

Regards
PiPlayer

[strebor56]

Outside install



PiCorePlayer 6 in its IP65 box Polk Audio Atrium 5s asound configured to mono.

[sodface]

Nice install strebor56!

[piPlayer]

... in its IP65 box ...

There is no ventilation at all in such a water-protected housing. I have concerns that the Raspberry Pi and the amplifier will get too warm. Especially if the box is made of plastic.

Regards
PiPlayer

[strebor56]

Temperature management

There is no ventilation at all in such a water-protected housing. I have concerns that the Raspberry Pi and the amplifier will get too warm. Especially if the box is made of plastic.

Regards
PiPlayer

PiPlayer. the box is ABS so as you say will not conduct the heat away very well. In construction I allowed for ventilation of the front cover if necessary so will just have to keep an eye on it. The Pi is a 1A+. I will report on how it gets on over the summer.
Regards Strebor