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'"Project 1-B"->Cambridge...
Forum: '"Project 1-B"->"Project 1" + Webremote Wemos D1 R2 (ESP8266)
Last Post: admin
12-04-2018, 03:55 AM
» Replies: 0
» Views: 129
Sabaj DA2,DA3,D4,idea,iq ...
Forum: Sabaj DA2,DA3,D4,idea,iq etc..XMOS-USBaudio 4.47 (debug) 2018-08-06
Last Post: admin
09-27-2018, 13:42 PM
» Replies: 0
» Views: 282
Thesycon JLsound V4.13 + ...
Forum: Thesycon JLsound V4.13 + V4.41 - I2Soverusb
Last Post: admin
09-24-2018, 00:03 AM
» Replies: 0
» Views: 340
interesting post concerni...
Forum: OP-Amp rankings/experiences ES-Sabre-Boards
Last Post: admin
09-22-2018, 17:56 PM
» Replies: 0
» Views: 377
Forum: Singxer_USB_Audio_Class2-Driver_v4.45.0.exe 06.Juli 2018
Last Post: admin
08-08-2018, 02:16 AM
» Replies: 0
» Views: 3,061
Gustard XMOS-USB Driver V...
Forum: Gustard XMOS-USB Driver V.4.13 06/12/2018
Last Post: admin
06-25-2018, 20:09 PM
» Replies: 0
» Views: 5,470
ES9038Q2M web-/BT-control...
Forum: ES9038Q2M web-/BT-control GUI sketch..
Last Post: admin
06-11-2018, 00:31 AM
» Replies: 0
» Views: 5,513
ESP32S-Geekcreit 36 pin..
Forum: first steps/general thoughts
Last Post: admin
05-23-2018, 01:19 AM
» Replies: 0
» Views: 6,633
new 9038q2m dac card audi...
Forum: new 9038q2m dac card audiophonics + KALI included
Last Post: admin
05-05-2018, 16:10 PM
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» Views: 6,271
OP-Amp rankings/experienc...
Forum: OP-Amp rankings/experiences ES-Sabre-Boards
Last Post: admin
04-21-2018, 00:39 AM
» Replies: 0
» Views: 6,267

  '"Project 1-B"->Cambridge Audio Azur 540A IR/BT-remote + Webr. Wemos D1 R2 (ESP8266)
Posted by: admin - 12-04-2018, 03:55 AM - Forum: '"Project 1-B"->"Project 1" + Webremote Wemos D1 R2 (ESP8266) - No Replies

so,  Wink
after i was very glad with "Project 1" (CA-IR-remote substitution through Arduino+Bluetooth) + the "Project 3"->Webcontrol for the ES9038Q2M  Wink i thought i could combine these two and because there was also an "old" WeMos D1 R2 (ESP8266)"lying around" i made a simple "Arduino goes serial with the ESP8266"..
there are millions of tutorials about this on the web, had nevertheless problems here, and so i thought i make a quick and dirty tutorial how to connect the Arduino Uno and the ESP8266, via which pins and with the right libraries..(+ Arduino IDE-sketch)

[Image: uno+wemosd1r2.jpg]

absolutely easy (if u know how  Wink )..
on the Arduino simply use: (#include <SoftwareSerial.h>)-> SoftwareSerial wifi(10, 11); (or other pins, your choice) + (void setup->wifi.begin(9600); etc..look at the attached sketch..)
wanted also to use "SoftwareSerial" on Wemos (ESP8266) but had absolutely no success, so i used finally "tx1"->Serial1 (Serial1 only with tx) on D4 (GPIO2) (on this special WeMos D1 R2 the built-in led is btw on GPIO14 !!)
so, sketch ESP8266->only void.setup->Serial1.begin(9600);
(so, practically, connect D4 on the ESP8266 with 10 on the Uno..) (more in the also attached sketch..)

[Image: remote-2.jpg]

next point is the "Webremote"-sketch for the ESP8266..nothing special in particular; its all build on the wonderful "autoconnect-library" by "Hieromon"-->https://github.com/Hieromon/AutoConnect

as said, all further in the attached sketchs->hope someone can use it for himself ;-)



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  Sabaj DA2,DA3,D4,idea,iq etc..XMOS-USBaudio 4.47 (debug) 2018-08-06
Posted by: admin - 09-27-2018, 13:42 PM - Forum: Sabaj DA2,DA3,D4,idea,iq etc..XMOS-USBaudio 4.47 (debug) 2018-08-06 - No Replies

hi there,
came by chance (in searching for Sabaj DA3) on this site->https://www.audiocircle.com/index.php?PH...152638.340

and there they have a link to this->New windows driver XMOS_USBAudio_v4.47.0_2018-08-06_debug for Da3, Da2, D4, Idea, IQ, etc released by Sabaj.
(Tested and working fine with with Sabaj Da2.)

its also here->http://essabre-90xx-rpi.sfb2.com/pics/20...728165.rar

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  Thesycon JLsound V4.13 + V4.41 - I2Soverusb
Posted by: admin - 09-24-2018, 00:03 AM - Forum: Thesycon JLsound V4.13 + V4.41 - I2Soverusb - No Replies

in thinking about this raspi-4137 i came about this site (knew it anyway before)->


[Image: I2SoverUSB_1.jpg]
interesting thing (more specs at the link above..)

but also interesting is that they have a download-section (mainly for their i2soverusb i think) but there are lot of driver for the xmos-audio-boards ->


[Image: jlsound-2.jpg]

just downloaded the V4.41, we had V4.45 (although i think there are differences with the version-numbers between Thesycon+"normal" XMOS-audio-driver..)
couldn´t test it right now, will report then..(or post YOUR  experiences with it here..)

gr.  Wink

.rar   JLsounds_USBAudio_v4.41.0.rar (Size: 2.05 MB / Downloads: 1)

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  interesting post concerning different op-amps..
Posted by: admin - 09-22-2018, 17:56 PM - Forum: OP-Amp rankings/experiences ES-Sabre-Boards - No Replies


interesting excerpts:

"..Category 4 – like a completely arranged room, not quite tidy yet
I'd say, the fight with the Audio-gd op-amps starts making sense here. [Image: smily_headphones1.gif] 
Did you ever know that the op-amp grade matters for audio? Yes, it does, at least for OPA2134, OPA2132, LT1028, AD797 and OPA627 which I can confirm. So, let's continue:
2x OPA627BP – welcome to Category 4! Unlike the AP or AU series, this one is not lacking proper attack. Sure, it's not lightning fast but at least this one can keep the rhythm, it's actually pretty similar to the AD797ANZ with the advantage of JFET inputs. Lack of the last refinement and oomph makes it less than perfect. I'll get back to this later.
2x AD797ANZ – this one I regarded for a long time as a piece of wire equivalent when used as a buffer. It lacked some level of the lowest detail but added pleasant tube-like timbre, in a delicate form of course. This one is a bit better than the AD8599, with less accentuated sonic signature. 
2x LT1028ACN8 – the better LT1028 grade. Sure it's audible. Instead of the slight dryness you get a bit longer sustain in the mids, with a slightly higher midrange coloration, hardly perceivable when your ears get used to it. The soundstage is correct, the imaging is correct, tha PraT is correct, and what I would like from it to be perfect is a bit more independence of the events in the furthest background plans. It's sounds like it's a bit hazy there, however you can like it. 
2x OP27GP – no kidding! Just see the prices of the OP27E from Texas. [Image: smily_headphones1.gif] There is a trick – this one, I mean the one from Burr-Brown I own, requires class A biasing. Otherwise it's not worth considering. I remember I liked it even more than the 2x LT1028ACN8 combo. As a side note I can write that the OPA627 was designed to have this op-amp offering JFET inputs. Same with the OP37 vs. OPA637. 
2x OPA211 – the king of the space, I guess it's even exaggerated. In terms of overall order, clarity, timbre transparency and rhythm, this one is a direct upgrade from the OPA2228. Slight but worth it. The increased shape detail and huge soundstage is probably the result of something I'd call sound disassembling. It's like losing spatial coherence of each sound, having the tone in one place, and the harmonics just aside, not surrounding the right tone. Strange but true.
Category 5 – complete sound traveling in the clean air
2x AD797BRZ – this is the op-amp truly deserving the name of the Analog Device. This one is a smoother and fuller sounding version of the AD797. Switching from the ANZ to the BRZ series is like going vinyl instead of digital. Everything is smooth to the moment your music craves for the harsh texture like aggressive violin passages, distorted guitars, or stronger double bass phrases. The readability of the furthest plans is great, without going into image sharpening effect which makes you see the details more but lose the feeling of perspective at the same time. Roughly, it's like the AD79ANZ with all advantages of the OPA627BP added. The soundstage is nowhere limited and the sound image of whatever possible shape. This is a reference integrated op-amp for me so let me know as soon as you find better, and I will verify it. [Image: wink.gif] 


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  Singxer_USB_Audio_Class2-Driver_v4.45.0.exe 06.Juli 2018
Posted by: admin - 08-08-2018, 02:16 AM - Forum: Singxer_USB_Audio_Class2-Driver_v4.45.0.exe 06.Juli 2018 - No Replies

main post here->

we had V4.36, its now V4.45;

will test it with my Singxer XMOS-USB XU208 + ES9038Q2M..

(but the es9038q2m is now connected to the pi; will report then)

Update 08/25/2018:

just tested it here on Win10->XMOS-XU208 + ES9038Q2M: absolutely fabulous, no problems, got the feel its really slightly slightly better (this V4.45), but thats almost "hypothetic"  Wink ; but works (only difference that u dont have the 24bit/352khz-option in sound-properties (Win10) afair; 24bit/384khz is there..foobar plays very well in 24bit/352khz Dop (Asio PCM-active) btw. (see pictures); great sound IMO..

[Image: v445-1.jpg]
[Image: v445-2.jpg]

.rar   Singxer_USB_Audio_Class2-Driver_v4.45.0-.rar (Size: 2.03 MB / Downloads: 16)

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  Gustard XMOS-USB Driver V.4.13 06/12/2018
Posted by: admin - 06-25-2018, 20:09 PM - Forum: Gustard XMOS-USB Driver V.4.13 06/12/2018 - No Replies

found it by chance here: ->


its v4.13, we had v4.36, but this v4.13 is "newer";  from 12. June 2018 (12/06/2018)..

i will test it with a Skysong(Singxer) XMOS-USB-bridge and post the results here..

(Update: i´ve installed it here on Win8.1->no change in system-properties/device->driver-properties/sound..guess u/i had to deinstall the "normal" Singxer-USB-V4.36 first; its too much effort for me now; so no result from here ;-) )

.rar   XMOS-Stereo-USB-Audio-Class2-Driver-3033_v4.13.0.rar (Size: 2.07 MB / Downloads: 2)

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  ES9038Q2M web-/BT-control GUI sketch..
Posted by: admin - 06-11-2018, 00:31 AM - Forum: ES9038Q2M web-/BT-control GUI sketch.. - No Replies

initial post is here:->

[Image: Untitlhhhhed-1-1024x599.jpg]

sketch is here->
.rar   esp32s-pft-allright-w1-println16-w.rar (Size: 3.87 KB / Downloads: 3)

some interesting excerpts:


HardwareSerial BT(1);

#define BT_RXPIN 32 

#define BT_TXPIN 33
HardwareSerial uno(2); //16-17pin
#define uno_RXPIN 16 

#define uno_TXPIN 17"

void setup() {

  BT.begin(9600, SERIAL_8N1, BT_RXPIN, BT_TXPIN);
  uno.begin(9600, SERIAL_8N1, uno_RXPIN, uno_TXPIN);



u have 3 different hardwareserials (1-3) on the ESP32S, can freely name it and u can use a lot of pins for it (remap)..

(but, for example and also on this picture (at the bottom)->

u cant use pin 34-38, 8-11 and so on)


i originally wanted to use the onboard BT/BLE ->#include "BluetoothSerial.h" BluetoothSerial SerialBT; but it uses such an "enermous" RAM-amount (up to 60% !! only the simpliest BT-stack and nothing else)..for me here it was impossible to set up a sketch with it..
("they" (in the web) said all the "same", maybe i hadnt the right libraries+maybe there is a workaround/something new, but for me at present absolutely useless).
so i used a simple HC-06-BT-modul with rx/tx..(hardwareserial BT...)


SPI-wise i used the VSPI, its the standard spi-port if u use <spi.h> (for the esp32s) means gpio5 for ss, gpio18 for sck and gpio23 for mosi (and gpio19 for miso of course)..

[Image: esp32v1pinout.jpg]

also here a little sketch to connect the Uno via rx/tx (to the esp32s, cause as said, i didnt find the right esp32s-libraries for the display)->

.rar   secondtest-works-14.rar (Size: 9.76 KB / Downloads: 0)

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  ESP32S-Geekcreit 36 pin..
Posted by: admin - 05-23-2018, 01:19 AM - Forum: first steps/general thoughts - No Replies

so,  Wink
here are first steps/links/tips etc.. for the Geekcreit ESP32S->Link

[Image: geekcreit.jpg]
at starting with it, i´ve just seen that there were many different ESP32S; some with 28 pins (by example) and some with 36 pins (didnt knew it before)..

so, thats the first point Wink  (i will now post here some steps/links/experiences "randomly"; some results in testing out the software for it..)

2. good link is here->https://github.com/espressif/arduino-esp32/issues/544

3. ? if u use the 5V out from the Vin-pin (in case u r connected via 5V USB) dont cross it with the 3.3V-ground on the other (not vin-side) or else u will burn your esp32S ? (thought i understand it, but there is only one !! GND on the board..)

4. HardwareSerial Serial1(1);  // UART1/Serial1

void setup() {
 Serial1.begin(9600,SERIAL_8N1,9,10); //You can change 9 and 10 to another pins

5. Some of broken out pins are used internally be the ESP32 module to communicate with SPI memory. They are grouped on one side of the board besides the USB connector and labeled D0, D1, D2, D3, CMD and CLK. In general these pins should be left unconnected or access to the SPI flash memory / SPI RAM may be disturbed.

6.#include "BluetoothSerial.h"

BluetoothSerial SerialBT;

void setup() {
  SerialBT.begin("ESP32test"); //Bluetooth device name
  Serial.println("The device started, now you can pair it with bluetooth!");

void loop() {
  if (Serial.available()) {
  if (SerialBT.available()) {

7. finally a pinout especially for this "Geekcreit ESP32 DevKit V1 doit.am 36 pin" !!

[Image: esp32v1pinout.jpg]
7B: (update October 2018)
a very good picture is also this->
[Image: ESP32-DOIT-DEVKIT-V1-Board-Pinout-36-GPI....jpg?ssl=1]

its from this very good tutorial on "randomnerdtutorials.com" ->"ESP32 Pinout Reference: Which GPIO pins should you use?"

absolutely to recommend !!!

7C: additional info->https://desire.giesecke.tk/index.php/201...finitions/

8. links for web gpio->http://www.iotsharing.com/2017/06/arduin...m-web.html

9, EmbAjax->https://github.com/tfry-git/EmbAJAX

10. blue internal led should be on "GPIO2" = 2 ; didnt test it here so far..***confirmed from here***

(more to come Smile  )

(update July 2018)

11. after update espressif/esp32/arduino core (05-31-2018)(or similar) u can now select "DOIT ESP32 Devkit V1" (in Arduino) for this module; 921600 upload is now possible; don´t know other changes at present here..)

11B.: after update esp32 to (07-12-2018) first it didnt found the esptool->have to exec the get.exe in the tools-folder (the esptool is now in a new folder); second the "DOIT ESP32 Devkit V1" didnt work anymore Angry ..will post then here any further details..)

11C.: "rolled back" to 05-31-2018 (see attachment)->still no success; guess have to re-flash the bootloader or re-initialize the module first with the espdownloadtool 3.6.4; will post then results/details)

.zip   arduino-esp32-master 31-05-2018.zip (Size: 28.91 MB / Downloads: 0)


(Update October 2018) (side-remark concerning Wemos D1 R32))->
concerning the Wemos D1 R32 and after update Arduino-ESP32-core (to 26/09/2018) i used "ESP32 Dev-Module" in the Arduino-hw-settings)

Appendix A: RESETTING/RE-FLASH in case of failure->"dead"  Huh (DoIt  ESP32S (Geekcreit ) V1 36pin)

so, after this board was almost "dead" (my old sketch didnt work anymore, i was not able to upload something new, didnt run) i did the following steps and it worked again.. Wink
1. download the official "ESP8266/ESP32 Flashdownloader" from Expressif->https://www.espressif.com/en/products/ha.../resources..under "AT" (on the same page) u can download the different-bin files needed by the uploader (and which we need here); they are now at ESP32-WROOM-32 AT Bin V1.1.2, i ´ve used the V1.1.1->Link
2. very interesting was that they proposed "DIO" and 40 !! MHZ for the SPI-flash..i used lately 80mhz in the Arduino-IDE (maybe this was another fault !!(on this special board; 80mhz with the WeMos D1 R32 was absolutely fine !), just to remind)..
3. !! because i really dont know the exact adresses for the bin-files to upload in the flash-tool i´ve found this interesting site->http://iot-bits.com/esp32/esp32-flash-do...-tutorial/ and set it up accordingly to it..
now we have this->
[Image: flashtool-2.jpg]
(the bootloader.bin, partitions_at.bin and factory.bin are in the "esp32-wroom-at***"-zip file)

4. GREAT !! works again  Wink (the main problem was as said the exact hex-adresses where to upload the bin-files to) 

(4B: btw, my old sketch still didnt work anymore  Wink ..must have something to do with the updated ESP32-Arduino-core..)

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  new 9038q2m dac card audiophonics + KALI included
Posted by: admin - 05-05-2018, 16:10 PM - Forum: new 9038q2m dac card audiophonics + KALI included - No Replies

so,  Smile
hence/according to a question "Kali reclocker with DSD ?" by "Vinboy" and the answer from "Terry":

"...Hi, it's DSD using Dop.
I use a custom version of Moode that allows up to Dop/ DSD256 to play and that has custom filters/gain config for ess chip." 

here´s a link-tip by "Terry" :


[Image: ap-kali-1.jpg]

[Image: ap-kali-2.jpg]
[Image: ap-kali-3.jpg]

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  OP-Amp rankings/experiences ES-Sabre-Boards
Posted by: admin - 04-21-2018, 00:39 AM - Forum: OP-Amp rankings/experiences ES-Sabre-Boards - No Replies

so,  Smile
because i´ve tested a few OP-Amps right now (all this concerning to these chinese-essabre-boards) and i´ve got the feel/experience that it has huge/massive impact on the sound/tone here in this case on the sabre-boards (f*** on: "i hear no difference, the NE5532 is enough") i wanted to write down my experiences so far and in a short list..
and whats more interesting is how some other user feel about the different OP-Amps..

so please share here YOUR experiences and suggestions.. !!

(Update 15.June 2018)
I´ve tested so far:
NE5532,OPA2604,OPA2134,Muses8920, LME47920, LME47910, AD797 (on a ES9018K2M,ES9028Q2M and ES9038Q2M)..
Ranking (from high to low):

(Update 15.Januar 2019)

1.AD797 ANZ(x2)
4.AD797BRZ (x2) 
5.LME47910 (x2)
9.(really worse on these boards)OPA2604

so and because this Muses8920 sounds really "brilliant" on the ES9038Q2M par example (and on the other two too) and have IMO an impact of min.15-20% on the tone i was just thinking to buy 2 LME49710 or one LME47920 (i´ve ordered right now the LME49720 (5€)) (according to this "recommended" ES-Sabre-list (from ES-Sabre)->
[Image: table-1.jpg]
(its from this post-> http://essabre-90xx-rpi.sfb2.com/2018/04...ietpi-6-5/)

(the AD797 would be the optimum (or some Burson V5 or some discret OP-Amp) i guess) but right now its cheaper to order these two..

by that i´ve seen that "Terry" uses some Muses in his wonderful,wonderful DIY-DAC (more pics maybe to come) and i wondered if he tested out some other OP-Amps on these board..

as said, i´m only writing this because i´ve got the feel that the different OP-Amps have a real great impact on the tune (in any case on these boards)  in opposite to some other opinion that "u can´t hear any differences") (tss,tss,tss, i don´t get it how to write such crap)..

POST your experiences here !!

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