The Github page of KaRadio
The Github page of KaRadio AddOn (lcd, ir encoder etc...)
The HackaDay page of KaRadio

The Karadio facebook group

Download the software: a telnet+IR extension made with an ESP01

Click here for help on the uart and html interfaces


If you like Karadio and want to contribute to the development (software and hardware),
please donate, the amount is up to you.
Even one euro or $, I am so happy to know how many users appreciate this project.


My playlist: WebStations.txt updated on 2018/01/10
An italian playlist: WebStations_Italy.txt
A list of Swiss radio station: WebStationssuisse.txt
A list from arlaor (Arturo): WebStationsX.txt
A list from István Szentgyörgyi: WebStationsIstvan.txt
A list of Belarus radio station: WebStationsBelarus.txt
A list from Florin Nica: RomanianStations.txt
A list from Rostislav: czech and slovak web radio station from rostislav.txt
A list from Vlad: various web radio station from WebStationsBy.txt
A list from Vitaly: Russian web radio station from WebStations_Russia.txt

Please Send me your playlist to add it here.

Your prototypes:

Click here to see your prototypes


Release 1.5.2
Release 1.4.2
Release 1.4

Release 1.3.4
Release 1.3.2
Release 1.2.2
Release 1.1.8
- New uart command: Display nameSet, all icy and volume. Used to synchronize the lcd extension.
- cli.list command modified.
Release 1.1.7+
- Now Both AP SSID and AP Password are encoded to permit special characters like & : etc
- "Restore stations" corrected for some heavy lists
- Station information now gives the number of the current station
- retry client connection modified to avoid blocking situation.
- (1.1.7+) Volume offset on playlist was not working.
Release 1.1.6
- Modification of the list of uart command. See uart and html interfaces
- New sys.patch command. Inhibit or permit (default) the load of a vs1053 patch for AAC stations.
- New sys.led command. Default is blinking mode, or Play mode: the led is on when a station is playing.
- Modification of the wifi.con command. Now the AP can be set in the AP mode ( without the need of the web interface.
- New print button on the Stations panel: Print the list of stations, number and name.
- New logo ;-)
Release 1.1.5
- Modification of the list of uart command. See uart and html interfaces
- New IR and LCD software
- Autoplay corrected
Release 1.1.4
- Now 2 AP's can be set. The second one will be tested if the first is not detected.
- The Mac address of the radio is displayed
- An offset volume can be set for each station in Station editor.
- Pb on Autostart not correctly checked: corrected
- Added: a reset button for the equalizer
- Added a new uart command: cli.boot
Release 1.1.3
- New html command: instant="http://your url"
- The path of a station can now include some & parameters.
Release 1.1.2
- uart command list now can take a parameter: the number of the station to display.
.If no parameter, the complete list is sent.
- New wake and sleep features. Two modes: Time mode: "hh:mm" to wake or sleep at a given hour, or the delay mode "mm".
- Many minors html adjustments.
- Many bugs removed thanks to users feedback's.
Release 1.1.1
- The user agent for http request can be set for some special streams.
   Example: which need a user agent= pcradio.
   This pcradio user agent is already implemented automatically in the code when a pcradio station is encountered.
- Better station start and stop. (no more strange noises).
- Many bugs removed thanks to users feedback's.
Release 1.1.0
- Drag an drop on the stations list: rearrange the list by dragging a line to another one. Save the change when asked.
- Themes toggle between light blue and dark marron theme with a click on the logo.
- Sleep mode to stop the play after a delay.
- Functions on the web page are optimized.
- Many minor improvements on the code and the web page.
Release 1.0.10
- New uart interface command: cli.uart("x")
With x the uart baudrate at the next reset and permanently.
List of valid baudrate: 1200, 2400, 4800, 9600, 14400, 19200, 28800, 38400, 57600, 76880, 115200, 230400
The command will reply with
##CLI.UART= 115200# on the next reset.
- New Station selection with number
- Stations management in one page
- abort button on station edition.
- The I2S interface was not working. Thanks Discover1977 for the test
Release 1.0.9
- New html interface see uart and html interfaces
- New I2S external DAC interface on the vs1053. The I2S is enabled by default to 48kHz. To change the speed permanently use the uart interface with the command cli.i2s("x") with x =0 for 48kHz, x=1 for 96kHz and x=2 for 192kHz
The i2s interface is available on the alientek vs1053 with i2s_sclk on SCLK (GPIO16), i2s_sdata on SDIN (GPIO07), i2s_mclk on MCLK (GPIO05), i2s_lrout on LRCK (GPIO04).
- New Autostart: If autoplay is checked on the web interface, the current station is started at power on even with no web browser.
Release 1.0.8
- Corrected:
Some chunked html stations was wrong.
If no metadata, the station name is displayed in place
A station not found is indicated in the name on the web interface
Release 1.0.7
- Corrected: The webstation lists was wrong on empty station.
Release 1.0.6
- New sdk patch from Espressif see
- Now the maximum number of stations is 256
- Detection of external ram is working. If your chip has a /Vhold in place of /VBAT, the pin 7 must be wired to VCC (pin8)
- Save stations from... now working with the right filename for edge browser
- The AP Password field is masked.
- Increased spi clock for external ram