lh.py

#!/usr/bin/python3

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 = ""

        manufacturer = dev.getValue(btle.ScanEntry.MANUFACTURER)
        if manufacturer is not None and manufacturer[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)
    for device in delegate.devices:
        lh = btle.Peripheral()
        print("Connecting to %s" % (device))
        lh.connect(device, addrType = btle.ADDR_TYPE_RANDOM)
        try:
            if len(sys.argv) > 1 and sys.argv[1] == 'on':
                lh.writeCharacteristic(0x12, b'\x01')
            else:
                lh.writeCharacteristic(0x12, b'\x00')
        finally:
            lh.disconnect()

I can turn on both stations with this (might take multiple attempts), but only one station shuts down when using the off command.

output:
Found LightHouse LHB-B9E3CCFD: address = d8:d1:0a:37:7d:fc
Found LightHouse LHB-A2A4E957: address = c7:4e:ab:90:7f:6e
Connecting to d8:d1:0a:37:7d:fc
Connecting to c7:4e:ab:90:7f:6e
Traceback (most recent call last):
File "./lh.py", line 34, in
lh.connect(device, addrType = btle.ADDR_TYPE_RANDOM)
File "/usr/lib/python3.8/site-packages/bluepy/btle.py", line 445, in connect
self._connect(addr, addrType, iface)
File "/usr/lib/python3.8/site-packages/bluepy/btle.py", line 439, in _connect
raise BTLEDisconnectError("Failed to connect to peripheral %s, addr type: %s" % (addr, addrType), rsp)
bluepy.btle.BTLEDisconnectError: Failed to connect to peripheral c7:4e:ab:90:7f:6e, addr type: random