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 Rev6 - Built on 2020/01/11


  • 1.9 R7
    • New telnet or serial commands: cli.wake, cli.sleep:
      cli.wake("x"): x in minutes. Start or stop the wake function. A value 0 stop the wake timer cli.sleep("x"): x in minutes. Start or stop the sleep function. A value 0 stop the sleep timer cli.wake: Display the current value in seconds cli.Sleep: Display the current value in seconds
    • sys.lcdstop, sys.lcdblv: sys.lcdstop and sys.lcdstop("x"): Timer in seconds to switch off the lcd on stop mode. 0= no timer sys.lcdblv and sys.lcdblv("x"): Value in percent of the backlight.
    • Fade in and out for backlight driven by a gpio.
    • New tool and hardware partition from Bazooka07: Update for boards/ use tool directly from $IDF_PATH folder can process one or all boards in one shot. Update size for binary partition : 0x3000 now ! Look at :
    • Decode url correctly for /webStation. included name #149
    • Esp-idf Release 3.3.1
  • 1.9 R6:
    • Parse playlist fix.
  • 1.9 R4:
    • command now disable the AP mode if already connected to an AP in the past.
    • I2S corrected for 32bit output stream. Thanks to har-in-air github user.
    • Instant play: new button "Add/Edit", and update fields on cli commands.

KaRadio: Release 1.9

Release 1.9 R6 - Built on 2020/01/11


  • 1.9 R6:
    • Parse playlist fix.
  • 1.9 R4:
    • LWIP layer tuned. Better errno 11 computing.



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

First use

  • If the access point of your router is not known, the webradio initializes itself as an AP. Connect your wifi to the ssid "WifiWebRadio",
  • Browse to to display the page, got to "setting" "Wifi" and configure your ssid ap, the password if any, the wanted IP or use dhcp if you know how to retrieve the dhcp given ip (terminal or scan of the network).
  • In the gateway field, enter the ip address of your router.
  • Validate. The equipment restart to the new configuration. Connect your wifi to your AP and browse to the ip given in configuration.
  • Congratulation, you can edit your own station list. Don't forget to save your stations list in case of problem or for new equipments.
  • if the AP is already know by the esp8266, the default ip at the first start is
  • a sample of stations list is on
Read more »


KaRadio32 1.9 Rev 7 Updated

octet-stream - 1.43 MB - 02/14/2020 at 22:20


KaRadio 1.9 Rev 6 Partition 1

octet-stream - 421.50 kB - 01/11/2020 at 18:13


KaRadio 1.9 Rev 6 Partition 2

octet-stream - 421.50 kB - 01/11/2020 at 18:13


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?



Vanya Venikov wrote 09/23/2020 at 11:31 point

Hello, there is a bug in KaRadio32_19R7.bin - ogg vorbis streams does not work. Using KaRadio32_19R6.bin works correctly. Could you fix the bug in future release?

  Are you sure? yes | no

Marco wrote 05/19/2020 at 14:28 point


I would like to add a I2C display to my Karadio. Do I need an Arduino micro or can I connect it directly to the ESP32?


  Are you sure? yes | no

josefburgersanktmartin wrote 04/19/2020 at 17:42 point


I want to add to my KaRadio with ESP8266 and VS 1053 an 16x2 (or 20x4 )  liquid crystal display  with Arduino uno (or Nano )supplied with 5V . Can i connect RX-TX from Arduino and ESP8266 direct or I need a level adaptor ?Can you help with schematic ?

  Are you sure? yes | no

Jimsonweed wrote 02/14/2020 at 15:44 point

Hello, is it possible of implementing flac stream for karadio32 with vs1053 decoder? And wma parcing with "mms:" stream, since vs1053 is support all of it.

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 04/20/2020 at 07:42 point

I don't think that the esp wifi will support the stream speed for a flac.

Never tried.

  Are you sure? yes | no

Martin Fasani wrote 01/15/2020 at 15:20 point

Added to my curated list Espressif

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ifcristian wrote 12/09/2019 at 19:38 point

Hi! Nice job! Nice job!

I need help with one idea... i want to implement auto start chanel from day and hour. One day at 10 listen x chanel other day y chanel from y hour. You can help me? Regards !

  Are you sure? yes | no

simon wrote 08/27/2019 at 15:07 point


I have installed your Software on two ESP32 systems and booth working very well, i have only two suggestions.

1. sometimes after power the radio, the ESP32 don´t connect to the wifi and start instead the AP, the router is not far from the ESP... and next time the ESP connect to the WIFI, maybe it is possible to programm a routine, when AP is active, check every 5 minutes to stored WIFI networks.

2. somitimes when i switch a light in the near of the Radio, i hear a knock at the speaker and the radio is loudless, after a restart the radio is working well. Ithink the problem is the VS1053, maybe it is possible to check if the VS1053 is working, if not, give him a reset.

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Martin Fasani wrote 01/15/2020 at 15:23 point

I have a suggestion about that: Instead of using WiFi manager, let WiFi configuration come from Bluetooth serial or BLE (Serial is a smaller lib)
Here there is an example:
There is an Android app called "ESP32 WiFi setup over BLE or Bluetooth Serial" and then you can easily setup the Radio via Bluetooth

  Are you sure? yes | no

Georde wrote 07/29/2019 at 22:29 point

Hello. I have a problem: I cannot access the web page ( Connection to AP is correct. wifi "WifiWebRadio".  My browser, it says "This site can't be reached." 

What am I not doing well, what am I supposed to do?

Thank you

  Are you sure? yes | no

Curt Parrish wrote 07/25/2019 at 15:35 point


I like this project but haven't had much success. I'm using a nodemcu v.3 with an ESP8266 and a VS1053. After flashing the nodemcu, I can see a response from it in a terminal program. Following the directions in the response, I can connect to WifiKaRadio successfully, but when I enter in my browser, it says "This site can't be reached." There is also no result pinging that IP address, but does respond to the ping. I can't get any farther than this.

Can anyone help?

  Are you sure? yes | no

Sera26 wrote 05/13/2019 at 18:52 point


Playing of radio stations are lagging strongly with KaRadio, the streams are unpalatable.

I have already removed control buttons (ADC and GND bridged) and STM32+LCD but radio can't play stations continuously.

What can be the problem?

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/14/2019 at 08:37 point

What is the log?

  Are you sure? yes | no

Sera26 wrote 05/14/2019 at 09:10 point

Sorry, for ignorance but how can I get log file?

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/31/2019 at 15:47 point

resolved, thanks.

  Are you sure? yes | no

jumpjack wrote 05/13/2019 at 10:35 point

Could this tiny little thing be used as MP3 player module for the ESP8266 version?

<img src="">

DFPlayer mini mp3 module.

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/13/2019 at 11:07 point

No. no sd card allowed.

  Are you sure? yes | no

jumpjack wrote 05/16/2019 at 07:17 point

no, I meant if an MP3 stream could be sent to the module over serial.

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/16/2019 at 08:12 point

no, sorry

  Are you sure? yes | no

jumpjack wrote 05/13/2019 at 10:34 point

Can the project work as-is if I do not connect any display or key, or does it require some tuning?

Is any Arduino-IDE version available?

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/13/2019 at 11:06 point

Yes. no tuning but better with a little effort. (no lcd (sys.lcd("255"))

No, it is an esp_idf project only.

  Are you sure? yes | no

Roman Kot wrote 04/30/2019 at 09:54 point

Is this possible to integrate IR receiver in order to use any remote control. So you can learn commands from your Rc then map it at CSV 

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 05/13/2019 at 11:08 point

You can learn codes with the log at sys.logd level then map them in the csv.

  Are you sure? yes | no

Sera26 wrote 04/14/2019 at 10:10 point


I would like to use control buttons of KaRadio to Karadio32 instead of encoder.

Is this possible?

Thank you for help in advance.

  Are you sure? yes | no

Sera26 wrote 04/14/2019 at 17:42 point

Dear JPC! Many thanks for your support.

  Are you sure? yes | no

silvercarph wrote 03/11/2019 at 21:35 point

Hi, I appreciate your effort to create KaRadio. My setup works somehow but I need some help with two issues: poor sound quality and noise. 

1. Poor sound quality: I receive only a low quality mono-like sound (with some echo) with no bass unless a GND point (power extension safety GND point) is connected to the V1053 GND. With the external GND connected the sound is excellent but I would prefer to avoid another wire connected so close to 220V.
2. Low freqency noise -
When powered from a 5V power bank, there is no noise (still needs GND to mains GND to have good quality sound) and works perfectly.
When powered from a 5V phone charger and there is no external GND connection there is a loud low freqency noise. With the external GND connected all noise disappears and works perfectly.
Analog GND is connected to digital GND? Noise from the charger? Any ways to eliminate the noise?

My setup:
- MB102 power supply - powered from 5V power bank or phone charger through USB
- NodeMCU ESP8266 ESP-12E V1.0 - ( flashed with flash_download_tools_v3.6.5.exe), powered from MB102 5V, common GND
- VS1053 (red, chip ver. 1815) MP3 with SD Card Slot  - 5V from NodeMCU, GND from NodeMCU, jack connected to HiFi amplifier (which is also connected to UPC TV box)
- STM32F103C8T6 Blue Pill (karadio-addons-master\karadioUCSTM32 ver.07.02.2019 (flashed with HW-597 (CH340)) powered from MB102 5V, common GND
- 1.8" TFT ST7735B - powered from MB102 5V and 3.3V(for LCD), common GND
- KY-040 Rotary Encoder - powered from MB102 3.3V, common GND
So now I got stuck with an operational radio but the external GND line does not look safe. Any suggestions to improve?

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Zoltán Tóth wrote 01/15/2019 at 16:44 point


I want a firmware that runs the SH1106 LED display, unfortunately I couldn't solve it ... Thank you! Sorry for my weak English knowledge! If I were to get a link it would be the simplest ... The display is 128x64 size 1.3 ".

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nox.air wrote 10/16/2018 at 15:58 point

Hello Jean-Pierre and everybody!

Could you advice me? I'm trying to do KaRadio32 with the ESP32 Devkitv1, but something's wrong. I suspect "Flash download tools" can't do with my ESP properly. 

First it couldn't download KaRadio32 to the ESP32 (esp_sync_blocking), but later I managed to erase (only pressing boot while ....._____....._____). Only after this I finally loaded KaRadio32 to my ESP32. I linked it to WiFi but monitoring worked during near minute and finished. Maybe the device is defected? But later I installed Mongoose OS to the ESP32. It worked and exchanged data via WiFi. I've not recieved an amplifier from Aliexpress yet, so can't test lineout.

Is there another loader for ESP32, not "Flash download tools"? And maybe I can do something else?

Thank you in advance!

  Are you sure? yes | no

makersting wrote 07/04/2018 at 12:54 point

Hello Jean-Pierre,

somehow I managed to get contact to the ESP via my mobile. When I first entered the wifi-settings, I broke up to fast: I only filled in the information for my home-ssid and its passowrd, then I accidently saved before I filled in the IP-adress of the router. Now I cant find the ESP any more in the WiFi-net. What can I do?


Edit: I maneged to fix the problem. Actualy it was a network problem, so it has had nothing to do with Karadio.

Thanx for the effort creating this great internet-radio, Jean-Pierre!

  Are you sure? yes | no

lellobov wrote 06/06/2018 at 13:05 point

kindly there is someone who can show me the schematic and code to used an LCD 16x2 and control with three keys. thanks

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PIERRE wrote 05/24/2018 at 11:54 point

Hello, I build this project with a esp32 and all run for the best but i would like to move the VSPI pins (18/19/23/5) to the HSPI pin (12/13/14/15) for a simplification of a PCB design and  this don't run.

The web and telnet is OK, i can use the radio but nothing is display on the LCD.

(Type 197 ) 

I test the screen with another soft and it'ok.

I checked all the GPIO.H and all the files where SPI is called but i didn't found where i made a mistake.

Could you help me ? 

  Are you sure? yes | no

Jean-Pierre Cocatrix wrote 06/23/2018 at 22:54 point

How can I?Send the gpio.h may be

  Are you sure? yes | no

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