iPhone presence detection

[DGrandes]

Here is Bluetooth device presence script which changes value of respective grp addresses based on Bluetooth device appearance.

Code:

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require('ble') -- enable ble ble.up() list = {} -- mac -> group address mapping known = {  ['88:0F:10:10:F2:8A'] = '1/1/1',  ['88:0F:10:4A:2C:36'] = '1/1/2', } ctime = os.time() function callback(addr)  local now, delta  now = os.time()  delta = now - ctime  if addr then    if not list[ addr ] then      log('BLE found ' .. addr)      if known[ addr ] then        grp.write(known[ addr ], true, dt.bool)      end    end    list[ addr ] = now  end  -- check for missing devices each 5 seconds  if delta < 0 or delta > 5 then    for addr, time in pairs(list) do      delta = now - time      if delta < 0 or delta > 60 then        log('BLE missing ' .. addr)        list[ addr ] = nil        if known[ addr ] then          grp.write(known[ addr ], false, dt.bool)        end      end    end    ctime = now  end end ble.scan(callback)

Where should i put that code? In Common Functions or in Resident script?
This code is executed once or like resident script?