DIY-DAC: Telekom Media Receiver 303A as case/with 12V/3A power supply->as audio-streamer with Rpi4 + XMOS-USB-bridge + ESP32 as display-controller..

so, 😉

i´ve found a few days ago some „withdrawn from service“ 😉 Telekom (uarghh ;-( )  Media Receiver 303A->was first interested in the internal HDD->500GB Seagate, but have seen then this has also a built-in 12V/3A power-supply and its from the dimensions almost ideally as some Raspberry Pi4-ES9038Q2M-audiostreamer !! (not soo big) 😉

Display-wise its a little bit limited (due to the available space (height)) in the front, but some LCD1602 will maybe do it fine..

found then an easy way to connect some to an ESP32 via I2C and via some „web-remotes“ (see other posts here „Project-1“ etc..) we can select via some photocoupler/relais the inputs of the ES9038Q2M (Coax,Toslink, I2S/USB), adjust the hardware-volume, filter-selection and so on and can display the settings on the display/LCD1602) !!

so far so fine, but this is a heck of a lot work to do !! 😉 ..

(i´ve planned to use Volumio on the raspberry ->easy controlling via the web-interface, DLNA-capable, MPD etc..)..

as said, here at first testing-out some aspects/parts for it and a first result by example is that these 3A makes the „blue“ ES9038Q2M absolutely a little bit „airy(ier); had before some 2A power supply (12V)..

by that the „Leaf-XMOS-USB-bridge“ (->http://essabre-90xx-rpi.sfb2.com/?p=2066) is better than first thought..

+ also my new „ESP32“ will come to a new life 😉  (not to mention the Raspberry Pi4 2GB)

makes really a lot of fun here, and i will inform you about some further improvements !!

greets for now !! 😉

SFB2

Wharfedale Diamond 9.1 vs. Mission 760i/780 ->no comparison.. / ESP32-Cam

So, first: sorry for lately not soo much posting here .. 😉

Second, and because this is also mainly a „hi-fi“-related website i´m very glad to be able to post here also some speaker-experiences..

I´ve just bought some „Wharfedale Diamond 9.1 (white)“ to compare it with my old speakers (Mission 760i) and also to „upgrade“ my hifi-gear in general..

and because this discussion „which sounds better ->Wharfedale 9.1 oder Missions (lastet Centuries 😉 ) ?“-> i have now the answer:

Absolutely no comparison !!! The missions have a so much greater „soundstage/room/hifi-sound..“with them, really „hi-fi“ has just begun 😉 ..and because there´s always a „certain philosophie“ (sound-wise) behind the speaker-manufactories i would say the „Wharfedale“-philosophie is not mine/direction ;-). (guess i have to buy some Dali Zensor, KEFs or monitor-audios next.. )

by that i´ve bought some ESP32-Cam-Board + Cam(5,99$)->will post some experiences with it later !!

many greets from here for now !! 😉

„Arduino goes serial with the ESP8266“ / quick and dirty tutorial..

so, 😉
in waiting for the new Op-Amp (and looking for the right case + +-15V toroidal transformer), i´ve revived an old WeMoS D1-R2 (ESP8266)for using it with my Arduino-Cambridge-Audio-IR-Remotecontroller substitution (as wifi-/webcontrol)..
quick and dirty tutorial in the forum->http://essabre-90xx-rpi.sfb2.com/forum/showthread.php?tid=89

nothing special, only that i had great problems in using the softwareserial-library on the ESP8266 and that i used „Serial1“ instead (via „D4“ (GPIO2)-„Serial1.begin(9600)“)
the sketch for the ESP8266 is built around the wonderful, wonderful „autoconnect“-library by „Hieromon“(as posted before)->https://github.com/Hieromon/AutoConnect

more to come, greets for now !! 😉

ESP32 – Bodmer TFT_espi / autoconnect github / Picoreplayer 4.1.0 / Dietpi V6.18

so, 😉
nothing particular new; „audio“-wise its a little bit on „hold“ (had first to buy some +-15V toroidal transformer and so on) but i made a little progress/effort „usability-wise“..
i´m now able to get something in the spiffs-fs (ESP32), read it out 😉 and display it via „drawJpeg“ from the famous Bodmer TFT-eSPI-library->Link

(!! sorry for the still absolutely „shitty“ layout, but i was only happy to get something on the display at all 😉 !! (will change/edit it then; only some „ideas“ (for not doing it in this way 😉 ) for u maybe)
was a little bit difficult because u (i) really need the absolutely newest libraries (jpegdecoder.h for example too) from the bodmer-github-repository (some older example jpgs are unreadable by their own decoder-library and so on..)..
have still some problems/the first third of a decoded jpeg is corrupt, but i can now upload some jpegs in the spiffs, list and display them..(and understood how)
the whole sketch (web-gui for filter-selection, HW-volume control via digi-poti, display jpgs etc..) is here->Link and i maybe make a post in the forum->Link..(could be very interesting for some who also want to understand the ESP32 „better“)..


by that it was all build on top of the absolutely fabulous „Autoconnect-library“ by Hieromon -> https://github.com/Hieromon/AutoConnect; absolutely super great webserver/wlan access library->absolutely to recommend !!
Picoreplayer is now at V4.1.0 (24.Nov 2018)->https://www.picoreplayer.org/main_downloads.shtml(Pi-Kernel-bump to 4.14.81, squeezelite-update, support for Rpi 3B+ and so on->Link
Dietpi is now also at V6.18 (26/11/18)(some bugfixes+improvements)->https://github.com/Fourdee/DietPi/blob/master/CHANGELOG.txt
that was it for now, more to come, stay tuned, greets 😉

Project 3: read out/write data (over I2C) via the onboard mcu ES9038Q2M/-ES9028Q2M

so folks 😉 ,
essabre-90xx-rpi.sfb2.com needs your help 😉
as i just want to read out some data from the mcu on these boards like data-rate (192khz,384khz and so on), data-format (PCM,DSD) and maybe the HW-Volume for just displaying it on a small 3,5″ display for example (or use it to display it via some app/tool on a raspi/web etc..) „we“ have now to find a way to solve this..



as we now have the possibility to access the I2C-bus via the new connection on an ES9038Q2M (they used it also to display/change some values via their hardware) we have to find a way to simple control/change/read-out data over it..
the normal „adresses“ on an ES9038Q2M must be/are „hidden“ due to some NDA-bla bla, and the real register-adresses are „encrypted“/are only in the mcu..

but how can i/we connect a raspberry/Arduino/ESP32 to it via I2C ?

i think we have now here to make a really long tutorial to get such „experimental setup“ to work. how to exactly connect and to which pins, which tools/commands to use (python/i2c-set and so on)..
i will make a new thread in the forum->“Project 3: controlling the onboard mcu on an ES9038Q2M/-9028Q2M
there i will make this tutorial but i first to have to gather all possible informations about it and there u come in !! ;-)
so please post all your informations/experiences concerning this topic in the forum or here in the comment-section !!

a good start for now are these (new) „VinnyLorrin„-repositories at github->https://github.com/VinnyLorrin
->“ES9028Q2M-controller“,“ES9038Q2M-Linux_Driver“,“ES9028-controller-PCB“ and so on..very good, first, informations about it…
(many many thx btw. to „eslei“ at the diyaudio-forum for getting first infos/an entry->https://www.diyaudio.com/forums/digital-line-level/314935-es9038q2m-board-322.html

thread in the forum->http://essabre-90xx-rpi.sfb2.com/forum/forumdisplay.php?fid=86
greets for now 😉

ESP32S + 3.5″ TFT-display (480×320) (par.) ILI9481 Bodmer/TFT_eSPI

yeah, 😉
got it finally to work !!
so, another important step in the way of (building) your own DIY-DAC !! hooray !! (and thats what this site is all about, see „Introduction“) 😉
(YouTube-link->https://youtu.be/zjiCJ8Jtsug)
so II,
after the ESP32S is a much more powerful thing than an Arduino (the main advantage is also the great SPiffs/Flash-Ram of about 4MB(32Mb) for storing little images/icons like DSD64 and so on) and its a little bit difficult to get normal tft-displays on an ESP32S to work (different pin-layout and so on),i´ve bought this second tft (this time 3.5″) and only for ca. 6€->Ebay (Link)


main problem on these „cheap“ 3.5″ is that some must be parallel connected (and not via SPI) so u have to find a way to solve this..
i´ve used the famous „Bodmer/TFT_eSPI“-library (works for some displays in parallel mode + on an ESP32)->https://github.com/Bodmer/TFT_eSPI
u only have to change some values in the „User_Setup.h“ + „User_Setup_Select.h“ to match your needs->other pin-definitions + the right tft-driver-selection (post maybe a link to these 2 files here or in the forum)..
here it works fine with the „ILI9481“-tft-chipset:

so III,
i can now use the ESP32S for the HW-digi-poti, for the filter-settings and so on, all with a very nice gui via wlan..(or bluetooth or via mqtt with an app par example (see all the posts before))..very nice 😉

greets for now 😉

New Moode V4.3 out – now as an image (.img) / ESP32S factory-reset/flash

so, 😉
a new „Moode“ V4.3 is out; now as an image (.img); u dont have to set it up/compile it for yourself anymore->Moodeaudio.org
first impressions: (all in relation to „our“ ES9038Q2M-„chinese-boards“):

choose first the „I2S-generic“-settings; runs okay, no problems..

used then the „Audiophonics ES9028Q2M“ setting->for me better, not so „harsh“, got the feel it has more room, more „exact“, think its maybe about the specialized register-adressing of the ESS-chips (but don´t know for sure if they „fine-tune“ it for the chip, guess so)…used then to cross-check the „hifiberry-dac“ settings; the same there; for me absolutely to „harsh“, too much treble (not such a „fine resolution“ as the AudiophonicsES9028-setting..)
(the „Allo Katana“-setting (at contrary to Volumio) works also NOT !! (on the ES9038Q2M (chinese)))

stayed with the ES9028Q2M-setting, then tested for DSD(DoP): works, Moode said „Encoded to DoP 352.800khz“, but the DSD-Led on the ES9038Q2M was NOT lit !!

disabled the software-mixer, resampling-options, but still no DSD-light..

i´ve mentioned it in this post/article before-> http://essabre-90xx-rpi.sfb2.com/2018/09/volumio-now-at-v2-452-did-it-dsd-lock-light-on-es9038q2m-alsamixer-archphile-xmos-usb-audio-etc/

the first time i´ve got the feel of real DSD/DoP (and the DSD-Led was lit of course) was in/with „Volumio“; foobar2000 also said ASIO-active (pcm-mode) 352.800khz and so on, but the DSD-Led was also not lit !!

conclusion for now (for „our“ lovely chinese-ES9038Q2Ms 😉 ):

true/real DSD/DoP (DSD-Led lit) only on Volumio (V2.452 and up) (and meanwhile i think thats the point: with the „Allo Katana“-settings !!so far !!

by that, in listening here Moode is very very close to Volumio (maybe a little better at present IMO) (but as said, this is an absolutely personal/subjective impression).

also my ESP32S Geekcreit (Doit.am 36 pin) was not functional anymore, couldnt run/upload a sketch, tried everything, found now a way (and mainly with the right hex-adresses for the espressif-flashtool) to made it functional again->long Tut here (at the forum/at the end of the post)->LINK

greets for now 😉

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