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    ewasscher

    @ewasscher

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    Latest posts made by ewasscher

    • Support for wake up by Timer2 instead of WD

      Hi all,

      Before coming to MySensors I've been experimenting with waking up my sketches from the atmega328p Timer2, clocked from a 32KHz crystal, instead of waking up from the watchdog timer. This reduces the MCU power consumption from about 4uA to about 1uA while "sleeping". As a result battery life of (coin cell powered) sensor nodes is substantially increased. For example the battery life for a Sensebender Micro, powered from a CR2032, reporting temperture and humidity every minute would (theoretically) be more than doubled.

      Now I'm thinking of implementing support for this in MySensors. Regarding this I have some questions:

      • Are other people interested in this?
      • What would be the preferred way to implement this? I'm thinking of creating a new hardware type derived from the current MyHwATMega328.
      • Is there any chance of this being included in MySensors if implemented properly?

      Regards,

      Ewald

      posted in Development
      ewasscher
      ewasscher