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View Full Version : Inside/outside temperature


Darren
19 Nov 09, 03:37 PM
I like knowing the inside and outside temperature. It is useful on summer evenings so that you can open the windows once the outside temperature drops below the inside temperature.

I use two C-Bus temperature sensors to measure the temperature and display it on the touchscreens in the house.

I found it is even better to graph the two temperatures so you can see the trends:

1120

To do this, I created two graphs with transparent backgrounds. They are identical in every respect except for the line colour and the in-built System IO variable they are plotting.

I laid one on top of the other, and it looks like one graph with two lines!

As you can see, it was around 40C here before noon and heading towards 75C (at least it feels that way).

NickD
19 Nov 09, 04:50 PM
Cool (or not)...

I've got a similar graph, and i tried overlaying them but it didn't seem to work... perhaps because I only had one of the two set to transparent.

How do you get the time on the x-axis? It's probably obvious but I've obviously missed it :)

Nick

Darren
19 Nov 09, 07:24 PM
I've got a similar graph, and i tried overlaying them but it didn't seem to work... perhaps because I only had one of the two set to transparent.
Actually, only the one on top has to have a transparent background (background style = "none").

How do you get the time on the x-axis? It's probably obvious but I've obviously missed it :)k
On the horizontal axis options, select "show values".

NickD
20 Nov 09, 02:47 PM
Thanks,

I got it working last night... the axis values were obvious... when I looked for them... I'm sure you must have added then since I first used the graph :P

Nick

Damaxx
24 Nov 09, 08:45 PM
Thanks Darren.

Putting this into every install I can
Cheers for the info.

Maxx