Valve Index Lighthouse Control Script for Linux (Might Work on Windows Too)

lh.py

#!/usr/bin/python3

# Usage:
#lh.py on
#lh.py off
# with no arguments, state will be toggled (off -> on, on -> off)
#lh.py

from bluepy import btle
import sys

class DiscoLH(btle.DefaultDelegate):

    def __init__(self):
        self.devices = []
        btle.DefaultDelegate.__init__(self)

    def handleDiscovery(self, dev, isNewDev, isNewData):
        if not isNewDev:
            return

        isLH = False
        name = ""

        v = dev.getValue(btle.ScanEntry.MANUFACTURER)
        if v is not None and v[0:4] == b'\x5d\x05\x00\x02':
            print('Found LightHouse %s: address = %s' %
                  (dev.getValue(btle.ScanEntry.COMPLETE_LOCAL_NAME), dev.addr))
            self.devices.append(dev.addr)

if __name__ == '__main__':
    scanner = btle.Scanner()
    delegate = DiscoLH()
    scanner.withDelegate(delegate)
    scanner.scan(2)
    current = None
    for device in delegate.devices:
        lh = btle.Peripheral()
        print("Connecting to %s" % (device))
        lh.connect(device, addrType = btle.ADDR_TYPE_RANDOM)
        if len(sys.argv) > 1 and sys.argv[1] == 'on':
            lh.writeCharacteristic(0x12, b'\x01')
        elif len(sys.argv) > 1 and sys.argv[1] == 'off':
            lh.writeCharacteristic(0x12, b'\x00')
        else:
            # toggle
            if current == None:
                # only query one device state, to sync devices
                current = lh.readCharacteristic(0x12)

            if(current) == b'\x00':
                # turn on
                lh.writeCharacteristic(0x12, b'\x01')
            else:
                # turn off
                lh.writeCharacteristic(0x12, b'\x00')

        lh.disconnect()

Modifies @prefiks original code to toggle the lighthouse state, when no argument is specified.
That is, this change will turn the lighthouse off when it's already on, and on when it's already off.

In Ubuntu, I also put the following in a file named lighthouse.desktop on my desktop and click it when I want to turn them on or off. Make sure to edit the line Exec=/path/to/lh.py with the actual path.

[Desktop Entry]
Version=1.0
Name=LightHouse
Comment=Turn Index Lighthouses On/Off
Exec=/path/to/lh.py
Icon=scanner
Terminal=false
Type=Application
Categories=Utility;Application;

Also, make sure to set chmod u+x on both the .desktop file and lh.py.

To set permissions correctly I also had to do the following:

sudo setcap cap_net_raw+e /home/waylonflinn/.local/lib/python3.8/site-packages/bluepy/bluepy-helper
sudo setcap cap_net_admin+eip /home/waylonflinn/.local/lib/python3.8/site-packages/bluepy/bluepy-helper

modify the path above to point to your installation of bluepy-helper

Fix is from here: IanHarvey/bluepy#313

Hi Waylonfinn,

Is there any way to act only on one or multiple lighthouses instead all of them?
i have two zones here and I would like to toggle one of the other zone but not both at same time.

@MartnIV

If you know python, you should be able to play around with the code and identify which bluetooth addresses correspond to devices in each zone. Line 37 loops over all the found addresses. After you know which address corresponds to which physical device, make two lists of addresses, one for each zone. Then, rewrite the script so that it only includes devices if they have an address from the zone you want to activate. You can do that by modifying the loop on Line 37. Rather than looping over all delegate.devices on Line 37 you would loop over the list of addresses for the zone you want to control. You probably want to add a command line argument for selecting the zone as well.

Making physical changes to the devices in your space will require that you manually change the addresses, since they will be hard coded.

Hope that helps.