Kategorie: STM32F103-“Arduino”-ESP32S/8266

ESP32-CAM-MB USB Programmer / 2$ / esp32-mjpeg-multiclient-espcam-drivers

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hi folks ! 😉

no worry, more “hi-fi” is coming in the next weeks but found today by chance this little thing->ESP32-CAM-MB USB Programmer !

should save the trouble in connecting the ESP32-cam-board via a ftdi-programmer (Essabre-Link here->http://essabre-90xx-rpi.sfb2.com/?p=2269) and reset/uploading a sketch/put in flashing-mode..

u can get them everywhere on ebay or aliexpress for example->https://de.aliexpress.com/item/1005002265308564.html (guess 2$/6$ with ESP32Cam-board)

Nice tutorial in using it is again on “randomnerdtutorials.com/”->https://randomnerdtutorials.com/upload-code-esp32-cam-mb-usb/

and also nice tutorial again to install the Arduino-IDE + the esp32-packages->https://randomnerdtutorials.com/installing-the-esp32-board-in-arduino-ide-windows-instructions/

UPDATE: had problems in streaming with the “normal” “ESP32-cam-webserver”-.ino  in the Arduino-IDE examples-folder to more than 1 client->this library (rtos-based) should do the trick (up to 10 devices)->https://github.com/arkhipenko/esp32-mjpeg-multiclient-espcam-drivers

Full story here->https://www.hackster.io/anatoli-arkhipenko/multi-client-mjpeg-streaming-from-esp32-47768f

 

so, many greets for now and as said more “hi-fi” / ES90xx/Pro -things are coming again in the next weeks !! 😉 

again some new pics->DIY-DAC (ES9038Q2M) / 100.000 visitors..

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so, 😉

because we have almost a 100.000 !! visitors here on the site (hooray, tomorrow i guess 😉 ), i post some additionally pics on the improvements of the DIY-DAC..

I´ve added some 0.96OLED (I2C) to display the data-format and rate (DSD/PCM-44.1k-384k DSD256 and so on); by that i use also 2 new LEDs (blue for DSD and red for PCM) to make the dac more shiny 😉 ..

problem was to get the information through the usb-bridge if it got DSD or PCM..will post then more about it..

unfortunately nothing “more” new about these “whole” ess sabre-things, maybe then more, greets for now !! 😉

(fifth picture is from a “Copland CSA100”->Quad Mono Sabre)

ESP32-Cam / .ino / Port forwarding / “Solar”-category !!..

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so, 😉

have now the time to get a little bit more “in-depth” with the ESP32-Cam..You can get it meanwhile for 5-6$ from Aliexpress,Bangood etc..(LINK,LINK)

u need an FTDI-programmer for it of course, 1,50$, Ebay->(LINK)

a very good tutorial about setting up the ESP32-Cam, how to connect to the FTDI-programmer + sketch is here->https://randomnerdtutorials.com/esp32-cam-video-streaming-web-server-camera-home-assistant/

the sketch is also very “easy” (see on randomnerdtutorials) and for “flashing” u only need to set a jumper on IO0+GND (and remove it afterwards of course 😉 )..The .ino/sketch is also here->(LINK)

the picture-quality is a little bit better that u might expect in the worst case 😉 and now i use the ESP32-cam directly over (DHCP)-WLAN connected and display it in a browser (simple IP-adress in the bar) or via some dyndns-provider (use here spdyn.de in Germany)..

u only need to port forward (90 to 80 for example) it directly to the device..

very nice thing, use a raspberry pi zero wh as a webserver, mqtt-broker “in between” and will also use then some ESP32 for solarpanel-control/measure the current from the batteries and display it on a website/handy etc..

more to come..also ordered some “step up module” to easier power them with 5V/2 cables”, Ebay,->(LINK)

by that i made a new “category” (on the right)->”SOLAR” 😉 ..i will post there anything about 5V/12V solar-panels, autotracking them etc. !! all with some Arduinos,ESP32,Raspis etc..very much more to come,

(above picture + description is from : http://b04forum.dl3ndd.de/viewtopic.php?f=18&t=365)

but many greets from here !! 😉 (but no worry->essabre-90xx-rpi.sfb2.com will stay absolutely more hifi-related !! 😉 )

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..

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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

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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..

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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

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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 😉

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