Idiot lights

colejv · Joined: 19 Mar 2008 Posts: 16

My latest thing has been creating idiot lights, these are small (10pxX10px) images I created with KIconEdit, the intent is that the light up red when room temperature rises above 90 Fahrenheit, power drops below 1VAC, wireless access point or ip based security system fails to respond to ping, I am also displaying current room temp along the usual host status and bandwidth usage. Overlib shows the APC graphs for room temp/input voltage, Bandwidth stats for the AP and ping latency for the security system.

I think this is all of the relative code (assuming you are using .96 if not insert the template code in each node )

MU-IT · Cacti User Joined: 06 Nov 2007 Posts: 55

that's pretty sweet. I can't wait to try it out.

I'm running weathermap in my office on a 25" LCD as a system monitor, the more info i can display, the better informed I am.

Howie · Posted: Sun Aug 24, 2008 6:11 am Post subject:

Nice

This is the sort of thing that I want to make easier with the templates stuff. Some way to have the relative position refer to a 'last non-relative' node or similar would mean that you could lose all the position lines into the template too. (still thinking about that - I like to use relative positions for 'main' nodes, too, so it's not quite that simple. Maybe something to mark a node as 'major' or something?)

Even as it stands, you could use SET graph_id 235 and then move the INFOURL and OVERLIBGRAPH to the templates, too.

The current editor doesn't really deal well with this kind of 'cleverness' though, sadly.

Dano · Joined: 09 Sep 2008 Posts: 3 Location: NC

I'd like the PNG files. I think I'll give this a try. Thanks for post.

colejv · Joined: 19 Mar 2008 Posts: 16

Here they are

shanecentre · Joined: 02 Oct 2007 Posts: 1

When I use your config with my APC UPS I get the temp back in Celsius instead of Fahrenheit, not unexspected because the data comes from the UPS in C.

Can you use math in the target or node label to convert from C to F?

Sorry if this is a basic question (I'm new to Weathermap) but I've looked though the lists here and the Weathermap site as well as to docs and the closest I've come is some information about scaling. But that doesn't seem to be what I'm looking for.

Howie · Posted: Sat Oct 11, 2008 1:08 am Post subject:

Well, C= ((F - 32) ÷ 9) x 5

So you could do:

TARGET scale:0.55555555556:yourrrdfile.rrd - static:17.77777777778:17.77777777778

I've never tried that, but it *looks* like it would work

It's early in the morning and I've had no sleep and no coffee though...

(17.77777777778 is 32 * 5 /9)
(0.5555555 is 5/9)

colejv · Joined: 19 Mar 2008 Posts: 16

What you are seeing on my example is an external temp probe on a ap9619 that is actually read in Fahrenheit, the OID for it (1.3.6.1.4.1.318.1.1.10.2.3.2.1.4) reads either in Fahrenheit or Celsius depending on the settings under System->Preferences using the APC web interface. I have noticed the internal sensors ignore this setting,I considered creating a CDEF in cacti to handle this (that way the graphs would display Fahrenheit as well) but decided against it.

On my maps in the areas that I don't have the external sensors I have an additional scale/setup that displays them in Celsius so I know what I am looking at and no-one panics when they see Temps in the 90's.