WiFi Webradio on ESP8266 or ESP32

A fully featured wifi web radio player with only low cost boards.
with or without a vs1053 board

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Control with any browsers (ie edge, chrome mozilla etc...).
or with an external hardware panel or with the uart interface or with telnet.
Memory for 255 stations
OTA (On the Air) upgrade,
Read direct mp3 or ogg or WMA streams or playlist .pls .m3u, asx and .xspf
Read up to a 320 kb/s stream,
Encoder, IR, lcd ...
Embedded wifi configuration via the web or serial or telnet.
Metadata displayed (ie Title of the current song if given in the stream),
Permanent setting (sound setting, stations, wifi)
Server multi clients with automatic refresh (websocket),
The stations may be downloaded and uploaded within the web site,
Stations sort management by drag drop.
very quick responsive web by caching local information in the browser and websocket.
additional hardware: a led indicates the state of the equipment
Optional: control switches, lcd display, additional ram for buffering

See for the description of the minimal prototype.

See Github for sources

See github source for the ESP32 version ( vs1053 or i2s or pcm or internal DAC)

See A project derived from KaRadio32 in progress.

See the lcd +IR software's on Github AddOn

See some realizations of users at KaraDio

A nextion touchscreen display for KaraDio from yo2ldk : Here

For more informations or questions, you can enter to the Karadio facebook group

KaRadio32 Release 1.9


Release 1.9 Rev 1 - Built on 2019/02/20


  • 1.9 R1:
    • Labels in the csv hardware configuration.
    • Toggle main/time now permanent. On time display, an event go to the main screen for 3 seconds then return to time screen.
    • More reactive display on lcd.

-  Improved encoder for new chinese device (shorter pulses) (reverse A/B in case of reverse way)

-  Better vs1053 detection.

-  RSSI display needed a click of a button to start.

-  AP mode on init: the web page starts on the "Setting" panel and the stations list is skipped.

-  Wifi option: If wifi is disconnected choose to reset or wait for the connection on the same SSID:

-  Command"x") with x = 0: reboot, x=1: wait for the SSID

-  For internal reasons, the touch screen needs to be calibrated again.

-  No more fall back to i2s when the vs1053 is not detected. - Many small improvements in the code.

KaRadio: Release 1.8

Release 1.8 R2 - Built on 2019/02/10


  • 1.8:
    • Ram optimization
    • New edit panel with play/stop control
    • New volume control on web with Ctrl arrow keys
    • New upgrade indication on telnet, serial and web
    • Web page look changed (a bit),
    • Added the TZO on the setting page
    • Added the mDNS hostname on the setting page



For ESP32 see the github page KaRadio32. Release 1.6 R4

ESP8266 Simplest prototype:

- Optional external ram (23LCV1024) support (1:CS/=GPIO16 2:MISO=GPIO12 3:NC 4:GND 5:MOSI=GPIO13 6:SCK=GPIO14 7:GND 8:3.3v)

The optional led is now on GPIO2. The blue led on the ESP8266 is blinking at the same rate.
GPIO16 is now the Chip select for the external ram if any.
The external ram is detected at boot time if present.

To upgrade to this release, please flash at 0x1000 , at 0X81000 and blank.bin at 0x7e000 & 0x3fe000
After that, all next updates are done with the On The Air (OTA) feature.
New binaries are hosted at .

Loading the esp8266

Read more »


KaRadio32 1.9 Rev 1

octet-stream - 1.39 MB - 02/21/2019 at 13:14


KaRadio 1.8 R2

octet-stream - 378.14 kB - 02/11/2019 at 14:04


KaRadio 1.8 R2

octet-stream - 378.14 kB - 02/11/2019 at 14:04


octet-stream - 3.98 kB - 09/17/2017 at 10:26


octet-stream - 4.00 kB - 07/21/2016 at 15:19


View all 6 files

View all 6 components

View all 11 project logs

  • 1
    Step 1


    From ESP8266_ESP12( 3.3 v) or nodeMCU(5v) to VS1053 (5 v)


    ADC : gound if control panel not used

    CH_PD to 3.3v

    GPIO16 led output

    D5:GPIO14 to VS1053 SCK

    D6:GPIO12 to VS1053 MISO (or so)

    D7:GPIO13 to VS1053 MOSI (or si)

    TXD to CH340G UART rx

    RXD from CH340G UART tx

    D1:GPIO05 to VS1053 XDCS

    D2:GPIO04 to VS1053 DREQ

    D3:GPIO00 to VS1053 XRST


    D8:GPIO15 to VS1053 XCS

View all instructions

Enjoy this project?



ernie 881 wrote 06/09/2017 at 14:59 point

I personally think that the red VS1053B modules e. g. are much better than the blue ones labeled "lcsoft studio" or "lc technology". These were or damaged at arrival or dead after a few hours and don't have pin 34 pulled down (mp3 enabled at startup see ).

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 06/13/2017 at 20:19 point

I own all models lcsoft, red one and alientek (more complete than other) and all play for month now without problem.

The pin 34 is not a problem with the software patch.

  Are you sure? yes | no

ldv82 wrote 05/30/2017 at 13:44 point

Most likely, this depends on the compatibility of VS1053 and DAC. You will use an external DAC instead of the built-in VS1053.

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/30/2017 at 16:37 point

I am not an expert on DAC. All I know is:
##I2S speed: 0, 0=48kHz, 1=96kHz, 2=192kHz#
from the vs1053.

  Are you sure? yes | no

brony wrote 05/20/2017 at 04:53 point

Hi. Could you implement so called "radio buttons" to select preset stations?

  Are you sure? yes | no

aqvarius-sey wrote 05/18/2017 at 14:57 point

on version 1.1.5 strange problem. if you have installed memory and increase the volume of the radio goes silent. only a reboot helps. if the memory is to retrieve all works. checked all the connection is correct.

  Are you sure? yes | no

aqvarius-sey wrote 05/18/2017 at 10:05 point

hi! in the beginning I want to say thank you for a great project! I have a question to the Creator. updated from version 1.1.5 to 1.2.1. buttons connected to an analog input. problems: 1. when adjusting the volume there is no smooth adjustment while holding the button. 2. when you press short the volume randomly changes (jumps from low to high and back). in version 1.1.5 often, she cleared the EEPROM in the esp8266, you need to re-set the network settings, and list of stations.

  Are you sure? yes | no

AndrzejSc wrote 05/16/2017 at 14:32 point

I have a problem when change uart to 9600, after reset radio doesn't play. If I change back to 115200 it's play again. Debug informations is the same at both cases. Any ideas ?

  Are you sure? yes | no

ldv82 wrote 05/16/2017 at 09:44 point
What are the advantages of ESP32? Any new functions will be at the radio?

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/16/2017 at 09:53 point

Don't know yet ;-)
Just for fun and may be bluetooth, but I have to learn it before.

  Are you sure? yes | no

ldv82 wrote 05/15/2017 at 13:54 point

jp cocatrix 

Do not plan a version STM32+SSD1306+encoder?

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/15/2017 at 22:32 point

Yes, i'am working on it. Some technical problem with u8glib ...

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/30/2017 at 16:33 point

Too busy to study the STM32. I have one but unpacked for the moment.

  Are you sure? yes | no

Roman wrote 05/13/2017 at 15:29 point

HI,Problem! Radio sometimes stops working (hangs)!!!!


Best regards,
~~ Roman

  Are you sure? yes | no

Flex wrote 05/14/2017 at 15:04 point


I’ve got a similar problem, sometimes stops the VS Coding and needs a reset. The NodeMCU and Website keep working well, but the speaker didn’t get a signal from the decoder. It seems to happen randomly, sometimes after 20min and othertimes the systems run over hours perfectly.

I use an NodeMCU connected to an Arduino (for the OLED and a FM transmitter), buttons and such an VS1053:

It could be a pointer issue of the VS, when I stream from my Shoutcast-Server with 320kbps stereo it feels like the problem comes earlier as if I stream with 98kbps mono signal.



  Are you sure? yes | no

cwojtala wrote 05/03/2017 at 11:49 point

Hi, i've got an issue. I flashed the esp8266 with the esptool like this: write_flash 0x000 boot_v1.6.bin 0x01000
0x81000 0x7e000 blank.bin 0x3fe000 blank.bin
0xfc000 esp_init_data_default.bin 0x3fc000 esp_init_data_default.bin

and it seemed to work. i can connect to the AP but when i fill in the SSID ans password an then click validate nothing happens, after a reset its still in ap mode....

pls hlp


  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/03/2017 at 13:46 point

dhcp, or ip,mask,  gateway?

In dhcp the ip may be read on the uart interface.

  Are you sure? yes | no

cwojtala wrote 05/03/2017 at 13:59 point tried both. it starts always in ap mode again

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/03/2017 at 14:01 point

check with a terminal on the usb com port. You will see the error. Certainly a bad password.

  Are you sure? yes | no

cwojtala wrote 05/03/2017 at 14:51 point

dont ask m how but after a couple resets ist working now. what i observed is tha at the beginning there was no mac adress next to the wlan security options, but now is is there and its working. thx for this very cool project

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/03/2017 at 14:23 point

notice that the validate will reset automatically. It is the validate on right of the Wifi & Network label

  Are you sure? yes | no

Vishal Dhayalan wrote 04/22/2017 at 22:51 point

Hi again, can you also tell me which files i need to flash onto the ESP8266 NodeMCU and any other details required in this process? There seems to be more files in the 'files' section, than shown in the images on instructables for this project... Thank you.

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/03/2017 at 13:50 point

Which one?

  Are you sure? yes | no

Vishal Dhayalan wrote 04/22/2017 at 22:48 point

Hi, is it possible to add IR-Remote alone, without a display? and i would like it to just run on the esp8266 NodeMCU, without an arduino, as I'm trying to run on a minimum setup with basic user controls. Love all the effort and time you've put into this! Thank you.

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/03/2017 at 13:48 point

no, not without arduino mini pro. But you can have IR remote without display. Just don't add it.


  Are you sure? yes | no

Paul wrote 04/14/2017 at 01:41 point

Hi, the ntp client is a fantastic new feature, for some reason the time is returning as UTC +1. When I add my tzo ("+8") the clock reads one hour ahead. I have changed my tzo to +7 to give me the correct time for now. Will you be correcting this in the future. We don't have dst where I live, so thats not the issue.

Thanks for all your hard work on this project :) 

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/03/2017 at 13:52 point

No, it is a simplified implementation.

  Are you sure? yes | no

cwojtala wrote 04/09/2017 at 12:12 point

I'm a little  bit confusedFirst: if i connect the buttons to the adc, do i have to change the firmware in the esp8266?

And second: i've odered this Module: 

VS1003B VS1053 MP3 Module Development Board Onboard recording function 
(from AliExpress Android)

Does ist work with ist? If yes, how do i connect it to the ESP Board?

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 04/09/2017 at 12:43 point

1/ No, it is auto detected in software.

2/ Not sure, it is a vs1003. Partial support only by Karadio. Some doesn't work at all.
Th wire is well noted on the board. Same as vs1053.

  Are you sure? yes | no

cwojtala wrote 04/10/2017 at 11:48 point

thanks. Knowing my luck, my board won't work. But i can tell when it arrive from china

  Are you sure? yes | no

Eugene wrote 04/18/2017 at 16:13 point

This board works correctly with this project, have the same one

  Are you sure? yes | no

fjs1 wrote 04/04/2017 at 12:47 point

A really fantastic piece of work !  It works better than all IP radios (commercial) I had before.

Congratulations et Merci !


  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 04/04/2017 at 12:50 point

Yes, a bit hard to code but so exciting...

  Are you sure? yes | no

vanilinman wrote 04/01/2017 at 23:01 point

I solved the problem of crackles.I shorten the loop of wires between the modules (I connected without a breadboard).Thanks for the tips.

  Are you sure? yes | no

vanilinman wrote 04/01/2017 at 21:48 point

Thank you. You are super. It began to play. Please tell me how to get rid of crackles in the headphones. I tried various sources of power, it does not help.

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 04/01/2017 at 21:52 point

I don't have this problem.

Check the ground wires (try another gnd entry may be) and try to short it (and all other....


  Are you sure? yes | no

vanilinman wrote 04/01/2017 at 20:54 point

Hello friends. Help is needed. I picked up the radio for Wemos D1 Mini following the instructions, but it does not want to play. The port writes:
##CLI.STOPPED# from playStationInt
##CLI.NAMESET#: 1 Record
##CLI.PATHSET#: /Icecast 2.3.3-kh10
##CLI.STOPPED# from clientConnect

##CLI.VOL#: 254

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 04/01/2017 at 21:02 point


Port: 8101

Path: /rr_320

And it will work.

##CLI.STOPPED# from Post instant_play
##CLI.PATHSET#: /rr_320
##CLI.PORTSET#: 8101
##CLI.VOL#: 72
##CLI.ICY0#: Radio Record
##CLI.ICY4#: Dance
##CLI.ICY5#: 320
##CLI.ICY7#:  ice-samplerate=44100;ice-bitrate=320;ice-channels=2
##CLI.META#: Bounce Inc - Faith

  Are you sure? yes | no

Thomas wrote 02/18/2017 at 09:50 point

Hi JP, how is the correct Syntax to Change UART Baud over Browser?

  Are you sure? yes | no

Thomas wrote 02/18/2017 at 10:05 point

Hi JP, i already found but dont understand. Is it"19200") for example? This Dont Work so i guess my Syntax ist wrong

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 02/18/2017 at 10:11 point

Two different interfaces: 
On browser:   revert the uart to 115200 until a reset. Useful in case you don't remind the current speed.

But on the uart interface (serial on tx rx)
Or other speed to change the uart baud rate on the next reset and forever until another sys.uart command.

115200 is the default. Before connecting a display controller, you must change to 28800.

  Are you sure? yes | no

Thomas wrote 02/18/2017 at 10:23 point

Ok, its a pitty. I  thought it could be adjusted on browser also. Is it possible to read the curren setting of baud on the browser? I unfortunatly have no communication between display controller and Esp . And want to check this first before Disassemble my Radio to connect it to a computer.

  Are you sure? yes | no

Thomas wrote 02/20/2017 at 11:07 point

Hi JP i know that your Standard setting is 28800. But i changed it both to 19200 because 28800 is not selectable with Arduino Serial Monitor. This works fine for me, also with IR Receiver on a pro Mni with 8 Mhz and 3,3 Volts.

In the past i had sometimes trouble with self changing settings on the Baudrate.

But in this case i checked now with computer, it hasnt changed.  I detached the esp Module and mount it again, and now Display works again.

It seems that my build on a protoboard is not much better than on a breadboard.



  Are you sure? yes | no

Sergio wrote 02/13/2017 at 17:01 point

Hi JP, its posible to replace the VS1053 by a Bluetooth, to play the streams on some audio equipments or BT earphones?

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 02/13/2017 at 17:17 point

To replace the vs1053? No, absolutely no, it is the stream decoder (mp3 aac etc).
But you can add a bluetooth transmitter after to send audio.,searchweb201602_4_10065_10068_10000074_10000032_119_10060_10062_10056_10055_10000062_10054_10059_10099_10000013_10103_10102_10000016_10096_10000056_10000059_10052_10053_10107_10050_10106_10051_10000097_10000094_10000053_10000007_10000050_10084_10000100_10083_10000047_10080_10082_10081_10110_10111_10112_10113_10114_10115_10037_10033_10000041_10000044_10078_10079_10077_10000038_10073_10000035_10122_10121,searchweb201603_10,afswitch_2,ppcSwitch_5,single_sort_1_default&btsid=009badba-8b67-45c2-af4c-2ccb512e3c12,searchweb201602_4_10065_10068_10000074_10000032_119_10060_10062_10056_10055_10000062_10054_10059_10099_10000013_10103_10102_10000016_10096_10000056_10000059_10052_10053_10107_10050_10106_10051_10000097_10000094_10000053_10000007_10000050_10084_10000100_10083_10000047_10080_10082_10081_10110_10111_10112_10113_10114_10115_10037_10000041_10000044_10078_10079_10077_10000038_10073_10000035_10122_10121,searchweb201603_10,afswitch_2,ppcSwitch_5,single_sort_1_default&btsid=7bf82844-0d36-4b60-b01b-2619dfaded88

  Are you sure? yes | no

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