Data Logging / Graphs

[Rob F]

Sorry this update is taking so long everyone, work picked up some so that hasn't helped any. I'm definitely hard at it though.

So I've changed the graphs again for the 4th or 5th time. I want to make sure I get this right so I don't need to change it later and everyone loses their data.

Instead of 168 logs entries per day it now logs data 1440 times per day, every minute. Doing that definitely slowed it down but you get a better look. I might dropped it to every two minutes to speed it up, not sure yet. You can view a whole week of data at once but that's where it gets slow, it takes about 6 seconds to draw the graph.

Is that acceptable?

I was going to put a monthly view but that would take almost 30 seconds to load so I probably won't.

Now you can view back 1000 days, technically there is no limit I just rounded it to a 1000. 1000 days for the 12 sensors would be about 576mb.

There's 3 views in total, the full day, the full week (Sunday - Saturday) and then a zoomed in view of each hour.

The zoomed in view is a total of 5 pages, each page shows 5 hours and 37 minutes, this is where you can see data for each minute.

This is the hourly view, you can select a time zone and then adjust the days to compare. When viewing the full day or full week the buttons and times at the top change. Each graph is a different color, the blue in the image changes to match the graph button on the menu. The hourly view isn't actually a solid graph, each bar has a space so you can see the temperature lines running behind the graph.


This is the menu for the graphs, you get here from the home screen.


A couple questions I can't find a clear answer to, maybe someone knows? Wondering if I have this close to others.

1. How often does the Apex or other controllers log data?
   
2. How much data does the Apex or other controllers store?