Multiple Filament Sensors?


I am building a filament sensor for my Qidi X-One 2 right before the filament goes into the extruder. But, I was thinking that it might be cool to also put a sensor as the filament is coming off the spool (about 18 inches before the extruder).

The first sensor would send a push notification (pushover) and the second sensor would pause the print.

Has anyone figured out a way to do this?

I guess the first thing would be to get pushover to be able to send a notification based on a specific pin changing state. Then, whatever filament sensor plugin you want would work for the other one.

Thoughts, ideas and solutions would be greatly appreciated!


Two sensors would also be useful when there were dual extruders.