Breadboard Module-> 3.3V/5V Power Supply Module + I2S-„Doubler“

first, an 3.3V/5V Power Supply Module:


(Attention: cable colors not matching perfectly->just for illustration !!)

Features:
Breadboard power supply module, compatible with 5V, 3.3V, apply to MB102 breadboard.
Two road independent control, can switch over to 0V, 3.3V, 5V.
On-board two groups of 3.3V, 5V DC output pin, convenient for external lead use.

Specifications:
Input voltage: 6.5-12V (DC) or USB power supply
Output voltage: 3.3V / 5V (switchable)
Maximum output current: < 700mA
Dimension: Approx. 5.3cm x 3.5cm / 2.1″ x 1.4″

10 Pieces ->5,19€ (incl.shipping) !! on ebay-> LINK

wonderful for external (USB-Powering) 5V Hifi-components, such as the ES9023 Board above or par example these things-> (and you can use 2-3 or more components powered by this breadboard power supply !!)

okay,

and second such an „I2S“-Doubler; also absolut wonderful and can also be powered via this Breadboard/5V !!


Aliexpress 5,50$ -> LINK 

(Remark: unfortunately not tested here; the breadboard power supply just arrived but havent found the right male-male usb-cable yet, so i have to wait, but i would (will) have had soo much fun with it, i guess 😉 )

ES 9028Q2M->dtoverlay Raspberry Pi->config.txt

okay,
for this ES9028Q2M:

the working dtoverlay in config.txt is fortunately again (Raspberry Pi+DietPi+other):
hifiberry-dac -> (in config.txt): dtoverlay=hifiberry-dac
up to 384khz with no problem..
(rpi-dac works too, but as said limited to 192khz)

Hint for squeezelite-command-line options (also in picoreplayer->squeezelite-settings): try to use 24 (bit) and mmap on (1)..
(on this board 16 (Bit) causes only a heavy distorted noise/very often/almost in every case, beware !!))
PiCorePlayer->„in Picoreplayer you have to change from „simple/generic es9023“ (es9018k2m) to „ES9023“ (without anything)->up to 384khz;
(also had problems playing in 16bit->distorted noise; so try to use 24 oder 32 bit in „ALSA-Params“)
RPI-Dac was also possible in picoreplayer (but only up to 192khz)“

link+further description here:
http://dietpi.com/phpbb/viewtopic.php?f=9&t=1891&p=7243&hilit=es9023#p7243

ES 9018K2M->dtoverlay Raspberry Pi->config.txt

okay,
for this ES9018K2M:

the only working dtoverlay in config.txt (Raspberry Pi+DietPi+other) is:
rpi-dac -> (in config.txt): dtoverlay=rpi-dac
and though, its unfortunately limited to 192khz !!
there is no other dtoverlay that works without distortion for this board..(searched and demanded it for weeks, no success)

But after a lot of research its possible to get 384khz on this board to work with->PiCorePlayer !!
Description->„try picoreplayer->audio-options->use „Generic/simple es9023″->advanced->“Audio Card Control“->check „dt-overlay parameters 384k“..
let „onboard soundcard“ enabled (had problems with it changing, but try your luck“)->check the output with->sudo cat /proc/asound/card1/pcm0p/sub0/hw_params (or ../card0/.. if u unchecked onboard sound device)..
additionally change upsample setting to „X“ (upsample to max device capacity) and set alsa settings->sample format to 24 (had problems with 32)
so you´re done !!!“

link+further description here:
http://dietpi.com/phpbb/viewtopic.php?f=9&t=1891&p=7243&hilit=es9023#p7243

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