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Tools for controlling Dreamscreen device.

Dreamscreen protocol documentation is available here.

dreamscreen-cli

Usage: dreamscreen-cli -h [host or ip] -p [port] -g [group address] [COMMAND] [PARAMETER]

Command Parameter
mode sleep, video, music, ambient
input 1, 2, 3
brightness [0-100]
ambient_mode color, scene
ambient_color [0-255],[0-255],[0-255]
ambient_scene random_color, fireside, twinkle, ocean, rainbow, july4th, holyday, pop, enchanted_forest
saturation [0-255],[0-255],[0-255]
widescreen auto, on, off
fade_rate [0-50]
minimum_luminosity [0-50],[0-50],[0-50]
color_boost off, low, medium, high
music_visualizer 1, 2, 3, 4
music_color [r, g, b],[r, g, b],[r, g, b]
music_brightness [0-100],[0-100],[0-100]

dreamscreend

Dreamscreen control from keyboard event (Linux only).

Usage: dreamscreend -h [host or ip] -p [port] -g [group address] -d [device name]

User account should be in the input group to open /dev/input/eventX and to avoid ERROR: cannot open /dev/input/eventX: Permission denied.

sudo usermod -a -G input kodi

A key combination is used in order to avoid unwanted interaction with Kodi and other application.

Edit dreamscreend_keys.h to configure keys to your needs with Linux input event codes.

Name Key Command
KEY_COMBINATION Left ALT Key used for combination
KEY_MODE_SLEEP 1 Sleep mode, no light
KEY_MODE_VIDEO 2 Video mode
KEY_MODE_MUSIC 3 Music mode
KEY_MODE_AMBIENT 4 Ambient mode
KEY_INPUT_HDMI_1 5 Signal source: HDMI 1
KEY_INPUT_HDMI_2 6 Signal source: HDMI 2
KEY_INPUT_HDMI_3 7 Signal source: HDMI 3
KEY_BRIGHTNESS_VALUE_UP 8 Set brightness + 10%
KEY_BRIGHTNESS_VALUE_DOWN 9 Set brightness - 10%

For example to activate video mode, use: Left ALT + 2

Compilation

Clone this repository and code compilation:

git clone https://github.com/cboyer/dreamscreen-tools
cd dreamscreen-tools
make all

Alternatively, you can compile code with make DEBUG=1 to print key events and UDP packet content. Compile only one tool with make cli for dreamscreen-cli and make daemon for dreamscreend.

Installation

Edit dreamscreend.service to your needs (user account, device name).

vi dreamscreend.service
sudo make install

sudo systemctl start dreamscreend
sudo systemctl enable dreamscreend

Uninstall

Uninstall dreamscreen-daemon:

sudo make uninstall

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