A web interface for Eversolo DMP player

I really like this device: it really allows you to manage your music library (listening only), to listen to web radio easily, and without advertising. Its interface is also clear and presents different ways to listen to music (by title, genre, year, artist, etc.). The software is not free of bugs but regular updates fix them.

To control the device, there are several possibilities:

• directly from its touch screen
• from the dedicated application, which includes the functions, by installing it on a tablet or an Android/iOS phone without having to create a Google account.

Control from a computer is therefore not available, unless you install the APK of the application on your operating system, but this is not always compatible. This is why I created a web interface dedicated to this device.

Web interface for Eversolo DMP player

For this project, I started from the style of the interface created by neoheresy, on audiosciencereview.com, which I found interesting but which was only in sending mode. This interface does not know, for example, the status of the inputs/outputs nor the title currently playing:

The redesigned interface looks like this:

• Turn off, restart the device
• Change display, turn off screen
• Skip to next music, go back to previous music, pause and resume
• Change the volume: reduce, increase, mute or immediately select a volume
• Display of information about the track played: album cover, title, artist, album, technical characteristics of the file (channels, sampling frequency, file size, etc.)
• Total, elapsed title duration and title position navigation
• Display and modification of the music source (player, bluetooth, USB, optical socket, coaxial socket)
• Viewing and changing music output (XLR, RCA, HDMI, optical jack, USB)
• Display a message if the player is not reachable
• Play an album in track order or randomly
• Play a track immediatly or after current one
• Browse per :
• albums of displayed artist
• titles of displayed artist
• titles of displayed album
• all albums of the library

It therefore allows you to turn off the device or change titles when you are in another room, with a PC on hand, without having a phone with the application next to you.

Technical constraints

Browsers block by default calls to resources present on a domain name other than the place where the files are hosted, unless the called server returns CORS (Cross-Origin resource sharing) call authorization information via an "Access-Control-Allow-Origin" header. This is not the case for device APIs.

To get around this blocking, it is possible to use a proxy. So I created one in PHP, in a few lines of code, but which therefore requires the installation of Apache and PHP.

It is possible to do this directly on the device, by installing Termux then Apache and PHP. However, Apache must be launched at startup but the Eversolo player does not allow/do not offer this possibility. Android, the system present on the device, seems to lock any launch at startup...

Software installation

The software provided here requires you to have your own PHP server (on a NAS for example). It has been tested on DMP-A6 only.

• On your server, create the dedicated directory (for example "eversolo-dmp") in a web folder.
• Download the project archive and unzip it into the created directory:
  v. 1.0 : eversolo_panel_1_0.7z(60 Ko)
  v. 1.1 : eversolo_panel_1_1.7z(288 Ko)
  v. 1.2 : eversolo_panel_1_2.7z(230 Ko)
• Modify the js/config.js file to indicate the IP address of the streamer and the IP address of the proxy (this is ultimately that of the server).
  
  
• On your server, create a new virtual host. For example, on a Synology NAS, you can launch Web Station and create a virtual host that listens to a specific port.
• On a PC, access the URL of your NAS, with the corresponding port (here http://192.168.0.1:8080). You should see the interface appear.
  

If the Eversolo player is not powered on or the IP specified for the player is incorrect, you should see the following screen: