[ST Edge] Persistent Store

Developer Programs Writing Edge Drivers
2

Meanwhile, if your timer is set based on the changes to the preferences, I suggest you add a condition using the persistent store to verify if they actually changed. Eg.

for id, value in pairs(device.preferences) do
      local oldPreferenceValue = device:get_field(id)
      print("oldPreferenceValue " .. oldPreferenceValue)
      local newParameterValue = device.preferences[id]
      print("newParameterValue " .. newParameterValue)
      if oldPreferenceValue ~= newParameterValue then
        device:set_field(id, newParameterValue, {persist = true})
        print("change device parameter")
      end
end
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