Read an XKeys USB device and publish events to MQTT. Listen to MQTT for commands to change the backlights on XKeys device.
Requires linux, libmosquitto, libudev. Also requires a modified libuv - included as a submodule. Uses hidraw kernel interface.
The event string looks like this:
J:0,0,0;B:1 10;P
The parts are separated by ;, but there is no ; at the end of the line. The P is optional, it's presence indicates the Program button is pressed. The B is only present if buttons are pressed, then there will be a list of buttons that are currently down separated by spaces. The J is always present and indicates X,Y,Z for the joystick.
This event will be NEW followed by string of device product at startup or when device plugged in or GONE when device is unplugged. The device select will be first device detected with xkeys vendor id.
Send to xacs/xkeys/cmd
| Command | Description |
|---|---|
sys [red or green] |
Changes System LED in top left corner |
isys [red or green] val(off,on,flash or blink) |
Changes System LED in top left corner - isys allows blink, but dont use both sys and isys |
poll |
Generates an event of current status |
reboot |
Like unplugging and plugging in device |
frq num(0-255) |
LED Blink frequency |
int blue(0-255) red(0-255) |
LED Backlight Intensity |
all [red or blu] [on or off] |
Change backlight for all leds at once |
red btnid(0-79) val(off,on,flash or blink) |
Set individual backlight led |