Disable display of 2nd extruder heater controls if not present

[goeland86]

Currently Toggle always shows at 2 extruder heaters even when only one is present and returning temperature information.

Adapt the number of controls to match with the number of temperature sensors read by temperature messages (that aren't system temperatures)

[goeland86]

@BrunoSonego we'll try to address the issue soon, but I can't promise it'll be fixed in time for Umikaze 2.2.1. It will be in 2.2.2 though.

[BrunoSonego]

@goeland86 dont worry i`ll keep using the 1px version until we figure it out hahahaha

[BrunoSonego]

Actually it should be better to use the extruder number from local.cfg instead. one example is that i use a 3rd temperature sensor to monitor the cold end

[goeland86]

I understand - however I think the cold-end monitors return temperature without being addressed by a heater axis key in the OctoPrint stream - but I need to double check that to be sure.
Toggle does not read Redeem's config - it's standalone from the rest of the Thing-Printer stack.

Hopefully we'll simplify it to the point where folks can install it on a Pi to use on any OctoPrint-enabled printer. So we need to be able to smartly detect the heaters from what OctoPrint tells us, not based on config files.

[eliasbakken]

Is there a way to query octoprint for number of extruders? If not, a variable in the config is a very simple way to get it done.

[goeland86]

I'll check, the REST API may provide that information.

[goeland86]

Looks like it's relatively straightforward actually:
http://docs.octoprint.org/en/master/api/printerprofiles.html#get--api-printerprofiles
It provides the number of heaters, and whether or not there's a heated bed present as well. :D