Module.register("controlMonitor", {
	defaults: {},
	notificationReceived: function(notification, payload, sender) {
		if (notification === 'MMM_NEST_STATUS_UPDATE') {
            this.processData(payload);
		}
	},
	processData: function(data) {
		var awayState = 'unknown'; // 'home', 'away'
		// check for away state
		if (data.devices && data.structures) {
			var sId = Object.keys(data.structures)[0];
			var sObj = data.structures[sId];
			awayState = sObj.away;
		}
		var oldAwayState = this.awayState;
		this.awayState = awayState;
		// if state has changed and new is away then shut monitor off
		if (!(this.oldAwayState === awayState) && (this.awayState === 'away')) {
			//this.sendNotification("REMOTE_ACTION", {action: 'MONITOROFF'});
				console.log(this.name + "awayState " + awayState + "oldAwayState " + oldAwayState + " " + this.datetime4log());
		}
		// if state has changed and new is home then turn monitor on
		if (!(this.oldAwayState === awayState) && (this.awayState === 'home')) {
			//this.sendNotification("REMOTE_ACTION", {action: 'MONITORON'});
				console.log(this.name + "awayState " + awayState + "oldAwayState " + oldAwayState + " " + this.datetime4log());
		}
	},
	datetime4log: function() {
		var d = new Date();
		return (d.getMonth()+1) + "/" + d.getDate() + "/" + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds();
		}
});

What’s happing now is the home state is firing off every 2 minutes for every notification. I need a module level oldAwayState variable, so the when I get the update I can test against it to only fire off an update if there is a change.

Thanks