Strategies {
    // for rrd charts, we need a cron strategy, every Minute is a must have.
    everyMinute : "0 * * * * ?"
    // get the data reduced for older values to keep database small
    everyHour : "0 0 * * * ?"
    everyDay : "0 0 0 * * ?"
    
    default = everyChange
}

Items {
    // additionally persist Items
    Weatherstation_Chart* : strategy = everyUpdate, everyMinute
}