Robo-Tank DIY All-In-One Aquarium Controller User Manual
Robo-Tank DIY All-In-One Aquarium Controller
Back to Top
User Manual v4.05 – Page 60
Graphs & Logs
Robo-Tank collects multiple sensor, probe & equipment data, which is logged and the majority of which, can be displayed in
customized graphs.
There's a total of 22 graphs, and one log, one for each of the parameters that can be currently read and recorded, and a log
of equipment status changes.
Graph Features
Graphs use an auto-ranging feature, so when a graph is loaded it finds the minimum and maximum value in all the data and
draws the graph based on that. For example if you viewed a month of water temperatures and the min was 75.48 and max
was 78.13 the graph would only show those ranges. The graphs can handle any value from 0 to 100000. The min value in
the graph is always 10 pixels from the bottom so you can see the difference from the min value and a no value reading (if
sensor was unplugged).
You can zoom in/out of the graph. If you were viewing the water temp and it displayed 75.48 - 78.13 and you zoomed out
the graph would show values from 75.48 - 79.13. Every time you zoom-out the maximum value goes up by one which
compresses the graph so you can see the curve ‘smoothed’ for the respective time frame being viewed.
To “zoom in” on a graph, press the right side of the graph, and to “zoom out” press the left side of the graph.
This is the only setting not saved to eeprom so once you restart the controller the view will be restored from where you
started. Currently same zoom level effect all graphs.
Data can be viewed based on day, week, bi-weekly and monthly. When you view monthly the date range at the top will
change to 28, 29, 30 or 31 days based on month. If it’s a leap year it will show up during that day, other than that you won't
see the 29th when you view a month but can still view it in all other views. (Fix coming soon).
The graph style can be changed from bar to line.
The graph is updated every 8 minutes 35 seconds, if you are viewing a graph it will auto update when new data is logged.
There's also no limit on how much data can be stored and viewed, it’s based on the memory card. A 4 GB card will probably
hold more than you want. I've setup the display to show the last 10 years but that can easily be changed.
Viewing Graphs & Logs
From the Home screen press: Graphs, and you get
the screen to the left. From here you choose which
graph to view.
*NOTE: when you add a custom label, to any of the
temperature or humidity sensors, it is automatically
updated on this screen, for instance, you might
change Temperature Two to Sump Temperature,
(to display the temperature in your sump), it will
update on this screen, and on any other screen,
where it is displayed.