Time to switch from "false" to "true"!

[admin]

delta variable will have the time between FALSE and TRUE values in seconds.

Code:

value = event.getvalue()

if value then
  prevtime = storage.get('prevtime')
  
  if prevtime then
    storage.delete('prevtime')
    delta = os.udifftime(unpack(prevtime))
    log(delta)
  end
else
  storage.set('prevtime', { os.microtime() })
end