Busylite

Python command line tool to interact with the Kuando Busylight. This is a work in progress and real rough... so use at your own risk!

Drawing a lot of inspirtion from these sources:

• cython-hidapi
• js-busylight
• BusyLight Specs

Install

Install via PyPi:

pip install busylite

CLI

After installing, A quick way to get up a running is with the inlcuded CLI:

busycli --help

Server App

There is also an included Flask App, to accept HTTP POST requests. Start the server:

busycli serve localhost 5000 -u spam -p eggs

And then make a POST:

curl -u spam:eggs -X POST -i http://localhost:5000/send/done

Setup

Needed to get the produt and vendor ID. Easist way to grab this was to lsusb before and after plugging in the busylight:

• Vendor: 27bb
• Product: 3bcd
• ModelName: BusyLight UC Omega

Non-Root Access

Need to add a udev rule:

echo "SUBSYSTEM==\"usb\", ATTRS{idVendor}==\"27bb\", ATTRS{idProduct}==\"3bcd\", GROUP=\"$(whoami)\", OWNER=\"$(whoami)\", MODE=\"0664\"" | sudo tee -a /etc/udev/rules.d/30-busylight.rules

Test out the rules:

sudo udevadm test /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5.2

Where the syspath parameter was pulled from the output of:

udevadm info -a -p $(udevadm info -q path -n /dev/bus/usb/002/010)

where the dev path was pulled from lsusb.

Dependencies

Need to install some things and setup an environment:

sudo apt install libusb-1.0-0-dev libudev-dev

Writing to HID

Mimicking the methodology here buffer is constructed like:

1. Init as [0,16,0,0,0,0,0,0,128]
2. Add fifty zeros [0]*50
3. Append this to end: [255, 255, 255, 255, 6, 147]

Buffer positions:

• red : 3
• green : 4
• blue : 5
• sound : 8

Color Values

• Red: 0-255
• Green: 0-255
• Blue: 0-255

Sound Values:

• OpenOffice : 136
• Quiet : 144
• Funky : 152
• FairyTale : 160
• KuandoTrain : 168
• TelephoneNordic : 176
• TelephoneOriginal : 184
• TelephonePickMeUp : 192
• Buzz : 216

Volume is controlled by adding 1 to each tone: 0=MUTE, 7=MAX

The last two entries in the buffer are a checksum on the buffer:

checksum = sum(self.buffer[0:63])
self.buffer[63] = (checksum >> 8) & 0xffff
self.buffer[64] = checksum % 256