We are now ready to store our measured data. We use the lastMinute field defined earlier to know when we pass into a new minute. We use that opportunity to store the most recent value, together with the basic statistics we've calculated:

if (!this.lastMinute.HasValue) 
   this.lastMinute = Timestamp.Minute; 
else if (this.lastMinute.Value != Timestamp.Minute) 
{ 
   this.lastMinute = Timestamp.Minute; 

We begin by creating an instance of the LastMinute class defined earlier:

LastMinute Rec = new LastMinute() 
{ 
   Timestamp = Timestamp, 
   Light = Light, 
   Motion= D8, 
   MinLight = this.minLight, 
   MinLightAt = this.minLightAt, 
   MaxLight = this.maxLight, 
   MaxLightAt = this.maxLightAt 
}; 

Storing this object is very easy. The call is asynchronous and can be executed in parallel, if desired. We choose to wait for it to complete, since we will be making database requests after the operation has completed:

await Database.Insert(Rec); 

We then clear our variables used for calculating peak values, to make sure peak values are calculated within the next period:

   this.minLight = null; 
   this.minLightAt = DateTime.MinValue; 
   this.maxLight = null; 
   this.maxLightAt = DateTime.MinValue; 
}