Internet radio and audio file player on ESP32-S3

MAJSTER XXL 152976 1601

Treść została przetłumaczona

Zobacz oryginalną wersję tematu

Report a violation of the law

Reply Cool? Ranking DIY | New topic

Notify about new articles

📢 Listen (AI):

#1591 21754427 17 Nov 2025 18:57

dawidkosciesza dawidkosciesza

Level 1

» | Helpful post? (0)

Post #1591
21754427 17 Nov 2025 18:57

Hello.
I would like to build a radio according to the EVO3 project. I would like to mount it in the housing of a Diora AS502 radio, such a gift for my Father-in-law.
I have a few questions:
Is there a list available of all the components needed to order and have everything needed to solder into the PCB. I have not found such a list on GitHub.
I would like to omit the encoder from my project and replace it with regular buttons (right, left, enter). Will this be very cumbersome?
I wonder if it would also be possible to assign 8 additional buttons as memory for 16 favourite stations (one button remembers two stations, short press/long press).
I don't have much experience with writing programs unfortunately, but I'm trying to develop
ADVERTISEMENT
#1592 21754434 17 Nov 2025 19:02

DJCheester DJCheester

Level 26

» | Helpful post? (0)

Post #1592
21754434 17 Nov 2025 19:02

Hello, referring to the above message, the evo3 radio is prepared to work without an encoder, but with the possibility of adding and assigning a keypad.

More about this in a moment, because I myself am preparing a version with a keyboard.

Greetings....
ADVERTISEMENT
#1593 21754449 17 Nov 2025 19:16

robgold robgold

Level 21

» | Helpful post? (0)

Post #1593
21754449 17 Nov 2025 19:16

@dawidkosciesza The Evo has built-in keyboard support based on a resistive ladder and ADC. There are plans to replace the ADC with a PCF-based keyboard chip. At the moment, there is no 'Favourite' station option. Perhaps one day I will add it.

You are left with the option to add this piece of code yourself or, alternatively, you can program the 16 favourite stations in a specific way, e.g. in Bank 1:

1 - under 1,
2 - under 2,
...and so on up to 8,
8 - under 8,
and then another 8 as:
11 - 9 station
22 - 10 station
...etc. to
88 - 16 station,

simply the buttons 1-8 from such a tuner can be connected to the numeric keypad code.
ADVERTISEMENT
#1594 21754490 17 Nov 2025 19:36

DJCheester DJCheester

Level 26

» | Helpful post? (+2)

Post #1594
21754490 17 Nov 2025 19:36

Welcome.

For some time now I have been creating another "block" for my Schneider tower. The tower is now about 40 years old, I have renovated this equipment, and added a CD player integrating function and interoperability with the whole set, that is, operation of a common remote control, input selector and recording to cassette from cd.
The equipment has full compatibility.
Especially from here I would like to thank my colleague @gps79 for developing the software for the CD player, if it wasn't for him it wouldn't be compatible with the rest of the set, it was he who wrote the remote control reception in ITT standard and the input selector support.
My warmest greetings to him from this place.
Someday I will describe in detail how we have been struggling with this construction, but I would like to do it right and, as you know, you need time to do it, which is still lacking.

As the equipment is modular I intend to add another block consisting of this radio from the Robgold evo3 version of the coll.

There is already a PCB version without encoders but with keyboard and remote control operation.

PCB for my version of the radio.

The whole thing will be mounted in the tuner like this.

I still don't want to get on with it yet because what I feel like sitting down to make changes to the code Col. Robgold gives a new update and new features (for which I thank him)

Someday, however, the project of a mini Hi-Fi tower from the 1980s in Germany will have to be completed

Greetings ...
#1595 21755433 18 Nov 2025 19:23

bolszoy bolszoy

Level 10
» | Helpful post? (0)

Post #1595
21755433 18 Nov 2025 19:23

dawidkosciesza wrote:
Hello.
I would like to build a radio according to the EVO3 project. I would like to mount it in the housing of a Diora AS502 radio, such a gift for my Father-in-law.
I have a few questions:
Is there a list available of all the components needed to order and have everything needed to solder into the PCB. I have not found such a list on GitHub.
I would like to omit the encoder from my project and replace it with regular buttons (right, left, enter). Will this be very cumbersome?
I wonder if it would also be possible to assign 8 additional buttons as memory for 16 favourite stations (one button remembers two stations, short press/long press).
I don't have much experience with writing programs unfortunately, but I'm trying to develop

Hello, there is no list of components. On the other hand, there are schematics on GitHub and on them it is described what type of display. But you have to read, sometimes several times, because you can actually get lost. Even someone asked about the type of display, if I remember correctly.

Attachments:

FilePlayer.h Download (4.29 KB)
#1596 21755482 18 Nov 2025 19:53

bolszoy bolszoy

Level 10

» | Helpful post? (0)

Post #1596
21755482 18 Nov 2025 19:53

DJCheester- Towje solution helped but now I have another error?

C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z13processIRCodev$part$0+0x80): undefined reference to `displayFolders()'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z13processIRCodev$part$0+0x84): undefined reference to `displayFiles()'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z13my_audio_infoN5Audio4_msgE+0xe0): undefined reference to `displayPlayer()'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z4loopv+0x44): undefined reference to `scrollDownFolders()'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z4loopv+0x48): undefined reference to `scrollUpFolders()'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z4loopv+0x4c): undefined reference to `playFromSelectedFolder()'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z4loopv+0x50): undefined reference to `listDirectories(char const*)'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o .literal._Z5setupv+0x94): undefined reference to `loadFileAndFolderIndexes()'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.
C:\Users\Bolszoy\Documents\Arduino\ESP32_radio_v3_ILI9488_canvas\ESP32_radio_v3_ILI9488_canvas.ino/ESP32_radio_v3_ILI9488_canvas.ino:521:( .text._Z13processIRCodev$part$0+0x356): undefined reference to `displayFolders()'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../.../..../xtensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/xtensa-esp-elf/bin/ld.exe: C:/lib/gcc/xtensa-esp-elf/bin/ld.exe.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:532:( .text._Z13processIRCodev$part$0+0x393): undefined reference to `displayFiles()'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.
C:\Users\Bolszoy\Documents\Arduino\ESP32_radio_v3_ILI9488_canvas\ESP32_radio_v3_ILI9488_canvas.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:2570:( .text._Z13my_audio_infoN5Audio4_msgE+0xfc): undefined reference to `displayPlayer()'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../.../..../xtensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/xtensa-esp-elf/bin/ld.exe: C:/lib/gcc/xtensa-esp-elf/bin/ld.exe.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:2708:( .text._Z13my_audio_infoN5Audio4_msgE+0xcf5): undefined reference to `displayPlayer()'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o: in function `loop()':
C:\Users\Bolszoy\Documents\Arduino\ESP32_radio_v3_ILI9488_canvas\ESP32_radio_v3_ILI9488_canvas.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:3280:( .text._Z4loopv+0x3f4): undefined reference to `scrollDownFolders()'
C:/Users/Bolszoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\Documents\Arduino\ESP32_radio_v3_ILI9488_canvas\ESP32_radio_v3_ILI9488_canvas.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:3254:( .text._Z4loopv+0x444): undefined reference to `scrollUpFolders()'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../../../../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\Documents\Arduino\ESP32_radio_v3_ILI9488_canvas\ESP32_radio_v3_ILI9488_canvas.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:3178:( .text._Z4loopv+0x4c1): undefined reference to `playFromSelectedFolder()'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../.../..../xtensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/extensa-esp-elf/bin/ld.exe: C:/lib/gcc/xtensa-esp-elf/bin/ld.exe: C:/lib/gcc/xtensa-esp-elf/bin/ld.exe.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:3165:( .text._Z4loopv+0x68d): undefined reference to `listDirectories(char const*)'
C:/Users/Bolshoy/AppData/Local/Arduino15/packages/esp32/tools/esp-x32/2507/bin/../lib/gcc/xtensa-esp-elf/14.2.0/../.../..../xtensa-esp-elf/bin/ld.exe: C:\Users\Bolszoy\AppData\Local\arduino\sketches\60E76002371B55718EB2E4873B120729\sketch\ESP32_radio_v3_ILI9488_canvas.ino.ino.cpp.o: in function `setup()':
C:\Users\Bolszoy\Documents\Arduino\ESP32_radio_v3_ILI9488_canvas\ESP32_radio_v3_ILI9488_canvas.ino/ESP32_radio_v3_ILI9488_canvas.ino.ino:3024:( .text._Z5setupv+0x217): undefined reference to `loadFileAndFolderIndexes()'
collect2.exe: error: ld returned 1 exit status
exit status 1

Compilation error: exit status 1

I understand that the issue is:

As for the attachment above /file.h/, I don't know by what miracle it attached and how to remove it.
ADVERTISEMENT
#1597 21755484 18 Nov 2025 19:56

DJCheester DJCheester

Level 26

» | Helpful post? (0)

Post #1597
21755484 18 Nov 2025 19:56

Well I was also wondering why you attached this file.

The question is what windows do you have and is it 32 or 64 bit ?

Greetings ...
#1598 21755501 18 Nov 2025 20:15

bolszoy bolszoy

Level 10

» | Helpful post? (0)

Post #1598
21755501 18 Nov 2025 20:15

Win 11 64 bit.

There is an empty /.ino/ on line 3024, and I think this is about the link. I will try again tomorrow.

Fellow foreman, is the code in the :
ESP32_radio_v3_ILI9488_canvas.ino
has not changed? Because the sketch I have seems to be a bit different. Unless I have messed something up....
#1599 21755507 18 Nov 2025 20:20

DJCheester DJCheester

Level 26

» | Helpful post? (0)

Post #1599
21755507 18 Nov 2025 20:20

If it's blank then nothing is probably about the line above, but the code is good because it compiles at my place.

Looking through the log I am concerned about esp32-x32 it looks like it wants to run on 32bit.

And what version of core do you have ?

Greetings ...
#1600 21755513 18 Nov 2025 20:25

bolszoy bolszoy

Level 10

» | Helpful post? (0)

Post #1600
21755513 18 Nov 2025 20:25

Kitchen 3 something ... I think the latest one is 5.
I'm looking for that link, and will install again. I've reinstalled Arduino and may have knocked out....
#1601 21755514 18 Nov 2025 20:28

DJCheester DJCheester

Level 26

» | Helpful post? (0)

Post #1601
21755514 18 Nov 2025 20:28

I have 3.2.0 installed

Maybe there is a problem here somewhere, because with me on 3.2.0 it compiles correctly.

Maybe try an older core install.

Unless other colleagues have any more insight from the league.

Regards...
Create an account, log in here. You will receive points by participating in discussions.
Join this discussion.

Install Elektroda application

Reply Cool? Ranking DIY | New topic

Notify about new articles

📢 Listen (AI):

Report a violation of the law

Topic summary

The discussion centers on the development of an internet radio and audio file player based on the ESP32-S3-WROOM-1 module, featuring a custom-designed prototype PCB with OLED display and user controls including rotary encoders and buttons. Key challenges addressed include pin spacing discrepancies in the ESP32-S3 module footprint, integration of Wi-Fi connectivity with dynamic station list updates, and handling of Polish character encoding on the OLED display. The project uses Arduino IDE (version 2.3.2) with ESP-IDF support and requires enabling PSRAM. Audio playback supports MP3, AAC, and FLAC streams, with the ESP32-audioI2S library recommended over the incompatible Audio library. Users reported issues with SPI MISO pin assignment causing bootloader conflicts, resolved by reassigning MISO to pin 35. The project incorporates WiFiManager for network configuration, EEPROM and SD card storage for saving last played station and settings, and includes plans for tone control via an external KA2107 equalizer and a CS8673 amplifier module. Problems with encoder input stability and memory limitations for Bluetooth A2DP on ESP32-S3 were noted. The community suggested alternatives like KaRadio and ESP32-MiniWebRadio projects. Debugging tips include serial terminal logs for HTTP errors and flash memory erasure to resolve boot loops. The project is open-source on GitHub, encouraging forks and modifications. Additional features under development include browser-based updates, directory navigation, and potential audio recording to SD card.
Summary generated by the language model.

Home page
/
Forum
/
DIY Projects
/
DIY Acoustics
/
Internet radio and audio file player on ESP32-S3

FAQ

TL;DR: DIY ESP32-S3 radio/player pulls 100 internet stations per bank and boots in ≈3 s; “building it on a breadboard is priceless learning” [Elektroda, MAJSTER XXL, post #20998118] Average parts cost ≈ €55. Why it matters: open-hardware keeps your music device up-to-date and repairable.

Quick Facts

• Core: ESP32-S3-WROOM-1-N16R8, 240 MHz dual LX7, 16 MB Flash, 8 MB PSRAM [Elektroda, MAJSTER XXL, post #20998118]
• Display options: 2.42” 128×64 OLED (SSD1309) or 3.12” 256×64 OLED (SSD1322) SPI-4-wire [Elektroda, MAJSTER XXL, post #21331457]
• Station banks: 1–15; up to 100 URLs each, fetched from GitHub on power-up [Elektroda, MAJSTER XXL, post #20998118]
• Audio path: I²S → PCM5102A DAC, 16-24 bit / 44.1-96 kHz; FLAC/MP3/AAC via ESP32-audioI2S [Schreibfaul, 2023]
• Typical BOM: ESP32 (€10) + OLED (€15) + PCM5102A (€6) + encoders & buttons (€5) + misc PCB/box (€20)

What hardware do I need for the v2 ESP32 radio?

Minimum: 1 × ESP32-S3-WROOM-1-N16R8 module, 1 × SSD1322 256×64 SPI OLED, 1 × PCM5102A I²S DAC, micro-SD reader, two rotary encoders with push-buttons, 5 V/3 A supply, and eight jumper wires [Elektroda, MAJSTER XXL, post #21331457]

How do I switch the 256×64 OLED to 4-wire SPI?

Solder a single jumper so that pads R5 and R8 are bridged; this disables the default parallel bus and enables 4-wire SPI mode [Elektroda, MAJSTER XXL, post #21376526]

Why does the sketch hang after “Brak połaczenia z serwerem pogody”?

OpenWeatherMap now requires an API 3.0 key and HTTPS; register, copy the 32-character key, and update the URL to http://api.openweathermap.org/data/2.5/weather?q=YourCity&appid=YOURKEY [Elektroda, gangliu2018, post #21350398]

Large FLAC files reset my ESP32—what’s the fix?

Files ≥ 30 MB can overrun the audio buffer; split albums, reduce sample-rate, or compile ESP32-audioI2S with larger ring-buffer (inputBufferSize ≥ 320 kB) [Elektroda, MAJSTER XXL, post #21338559]

How can I store the last played station?

Current build writes bank/station numbers to SD-card files (station_nr.txt, bank_nr.txt). On boot the sketch reloads them; no EEPROM wear and works even after power loss [Elektroda, MAJSTER XXL, post #21365665]

I see “Hostaddress is not valid” in Serial—why?

Your station string contains the name plus URL. The parser now trims everything before “http” or “https”; update to commit eba3d0c6 or ensure each line starts with the protocol [Elektroda, MAJSTER XXL, post #21359014]

How do I compile without SD-card attached?

Comment out writeSDCard() and readSDStations() calls; otherwise the code polls CS pin 47 and stops playback when the reader is absent [Elektroda, MAJSTER XXL, post #21358386]

Can I control the radio with just two encoders?

Yes. Short-press selects menu, long-press (≈3 s) toggles bank/player; wheel scrolls lists. A joystick or 5-way tact switch can add up/down/OK if you want quick access [Elektroda, MAJSTER XXL, post #21375300]

What is the typical boot and station-load time?

Cold boot to music ≤ 3 s; downloading an unseen 100-URL bank adds 1–4 s depending on Wi-Fi (–65 dBm RSSI) [Elektroda, robgold, post #21369916]

Edge case: the folder “System Volume Information” appears in the player list.

Filter the directory array so paths containing that name are skipped; otherwise the player shows a blank entry and fails to open files [Elektroda, robgold, post #21372146]

How do I update station lists?

Fork https://github.com/sarunia/ESP32_stream
Edit any bank*.txt online (42-char name + URL per line).
Save; the radio auto-downloads at next reboot or when you pick “Update banks”. “GitHub editing is the fastest workflow.” [Elektroda, MAJSTER XXL, post #21329513]

Can I print a ready enclosure?

STL and SketchUp files for a 160 × 40 mm aluminium-profile case (front bezel, encoder mounts, SD slot) are published in fork evo2 / cad directory [Elektroda, robgold, post #21373875]

Which libraries and versions compile cleanly?

• ESP32 board package 3.0.7 • ESP32-audioI2S 1.9.1 • U8g2 2.34.22 • Adafruit_SH110X 2.1.11 • WiFiManager 2.0.17 (change byte→uint8_t in DNS_PORT) [Elektroda, simw, post #21288589]

My OLED is blank although SPI works—what next?

Verify VCC 5 V (200 mA peak); set U8G2_R2 rotation; check that SCK, MOSI, CS, DC, RES go to GPIO 38, 39, 42, 40, 41 respectively on DevKitC-1 board [Elektroda, robgold, post #21376698]