pi based systems

[bassigia]

Hi everyone, I'm new to the forum and this is my first post ever.
As a budget-conscious audiophile, I decided last year to assemble a budget-wise streamer
but of quality, based on Raspberry.

I already had a stereo hifi system composed of:
- Advance Acoustic X-i60 amplifier
- Totem Acoustic Mite speakers

Inspired by the RaspTouch project system is:
- Raspberry PI 3 B +
- Official Display Touchscreen 7 ’’
- SmartPi Touch 2 Case
- AUDIOPHONICS Digipi + PRO Digital interface WM8804
- Remote PI (from MSL)

- external power button,
- external led
- external IR Receiver
- GPIO extender
- LEICKE power supply 20W 5V 4A for power display, 1x wall charger to power the RemotePi
- SanDisk microsd 16 GB
- Volume as software (2.779 so far)
- custom aluminum case. I want to keep all the stuff inside.

In the next future I want to add the Allo BOSS DAC 1.2 and power separetely from Raspberry!
My main goal is to get the best possible audio quality with the least expense, in the simplest way possible.

I decided to write here, first of all because my skills in electronics and assembly are very poor and because I believe that a DYI solution is the most economically sustainable.
I have no skills or equipment in soldering, in advanced electronics, in advanced modding of the Raspberry. I am a normal user who has many questions but little experience!
I have a big problem with power supply.
I tried this one:

using the two USB OUT (one to the display, and the other to the USB-C of the Remote Pi, Volumio doesn't boot properly, a error message appear "under voltage detected". So for the moment I use two cheap wall charger (one for display, one for Remote Pi)
Anyone knows some toroidal power supply easy to use? This LPS have to power first the future ALLO BOSS, than the RemotePi and finally the display touch.

Maybe this one can achieve this:



Project so far:

[bassigia]

here the link for above post:
https://www.msldigital.com/collectio...nal-ir-and-led
https://www.ebay.it/itm/Assemble-5V-...53.m1438.l2649
https://it.aliexpress.com/item/40002...1bdd2e0e6aEMJ5
https://imgbox.com/g/XEi6zCdT65

[steve-g]

I've just joined the Pi player club using an old Pi2B that I had lying around and a HifiBerry Digi+ Pro HAT.

Built into a case from Lincoln Binns with 2 seperate linear power supplies - 1 for the hat and the other for the pi.



This is what it looks like inside - the two pieces of strip board are the 5V power supplies.

Makes for quite a neat solution:

[Pascal Hibon]

• 
  
  • Waveshare 4,3" HDMI touch display

I'm looking at using a display like that
https://thepihut.com/products/hdmi-4...61f06668&_ss=r

Did you have to load or install any drivers oer software in order to make the dispaly work?

[Gobuleberbu]

Sorry for the blurry image. Basement sound system. Max2play imaged Pi3, with HifiBerry DAC with 7" screen. Outlook prepro , and a pile of vintage Brystons' providing the beef.Attachment 31192

That’s a powerful soundsystem!!!

[piPlayer]

I'm looking at using a display like that
https://thepihut.com/products/hdmi-4...61f06668&_ss=r

Did you have to load or install any drivers oer software in order to make the dispaly work?

Based on nowhinjings instructions link, the following changes are necessary:

1. Do not include this line in the file cmdline.txt: fbcon=map:10 fbcon=font:ProFont6x11 logo.nologo

2. Do not include this line in config.txt: dtoverlay=piscreen,speed=24000000
The display has an HDM interface. To activate it, the correct resolution in HDMI custom mode must be entered in the config.txt file.

hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0

The touchscreen has an ADS7846 compatible controller and is connected via GPIO. To activate it, the appropriate overlay must be entered in the config.txt.

dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900

4. The pcp-jivelite_default-wav35skin.tcz extension must not be installed.

5. The screen must be linked to fb0 instead of fb1 the file jivelite.sh like shown below.

#!/bin/sh

#export SDL_VIDEO_FBCON_ROTATION=UD

#export HOME=/home/tc
#export JIVE_FRAMERATE=22
#/usr/sbin/fbset -depth 32
#export SDL_TOUCHSCREEN=1
#TSLIB_CALIBFILE=/usr/local/etc/pointercal
#export SDL_MOUSEDEV=$TSLIB_TSDEVICE
#sudo -E -b /opt/jivelite/bin/jivelite.sh >/dev/null 2>&1

EVENTNO=$(cat /proc/bus/input/devices | awk '/ADS7846 Touchscreen/{for(a=0;a>=0;a++){getline;{if(/mouse/==1){ print $NF;exit 0;}}}}')

export JIVE_NOCURSOR=1
export SDL_VIDEODRIVER=fbcon
export SDL_FBDEV=/dev/fb0
export TSLIB_TSDEVICE=/dev/input/$EVENTNO
export SDL_MOUSEDRV=TSLIB

while true; do
    /opt/jivelite/bin/jivelite
    sleep 3
done

6. You have to look for a jivelite skin with 800x480 resolution (maybe joggler skin).

I hope this helps you further.

Regards
PiPlayer

[Pascal Hibon]

I hope this helps you further.

Regards
PiPlayer

Thank you, that will help a lot!

[vlaca]

Hi All!

Here is my DIY network player based headpnone system

RPI3(PiCorePlayer SqueezeLite) - Allo Kali reclocker - Audioponics ES9038q2m DAC - Schiit Asgard2 amp - AKG712pro headphone

[Pascal Hibon]

Time for an upgrade.
My trusted RPI 2B piCorePlayer in my main stereo setup got an update. I recently bought a secondhand Yamaha A-S3000 in as new condition. This is an amazing all analog amplifier.
The upgrade consist of the removal of the SPDIF hat. The digital board got replaced by an Allo Piano 2.1. I also installed the Allo Kali reclocker. The player received a dual linear power supply. One power supply provides the power to the RPI and the display. The second power supply provides power to the reclocker board and the Piano dac.
I build the enclosure out of 6 mm beech plywood which I had some scrap lying around. The display is still angled at 10 degrees.

I'm very impressed with the Kali / Piano combo; it sounds amazing.

[kingswindsor]

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

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