Getting LED Strip on in conjunction with MMM-Pir

rkorell

Hi folks,
I’ve searched a long while and found several (some of them really old) posts regarding the “easy” question:
“How can I synchronize on/off switching of a LED strip with MMM-Pir’s on/off switching of monitor”?
None of them are “answered” to a final solution - so I currently stuck…

I’ve seen that in module MMM-Pir seems to be a notification ‘USER_PRESENCE’.
(on and off, I assume).

What I cannot figure out: Where and how I can use this?

I’ve found a LED-strip module (MMM-FrameLight) which can handle notifications but is awaiting notifications in an own format e.g. “FRAMELIGHT_ON”.

How can I fetch the PIR “event” = notification for user presens/absence (from WWW-Pir) and how can I overhand this in changed format to an other module (WWW-FrameLight)?
Or is this simple not possible or do I even make an error in my approach - will this be solved in a completely other manner?

I would like to avoid to write own code to do the same work as already given modules.

For sure there is something obvious which I currently cannot see …

(To be honest I’m FAR away from real understanding what happens inside MM and I’m an absolute beginner in JavaScript - so the above mentioned “writing code at my own” would be really hard).

Thanks for any guidance.

Ralf

sdetweil

@rkorell i think framelight can also listen and act on other ‘system’ (any) notification

as these two are from another module, not the core ‘system’.
therefore you can setup for ANY notification

sdetweil

@rkorell modules receive notifications at the

notificationReceived() function in the modulename.js file

the function takes two parms
notificationReceived( notification_code, data(or payload))

a notifcation_code is that “USER_PRESENCE”,

and the data/payload is a notification specific data structure/value
for user_Presence its true and false

rkorell

@sdetweil OK, thanks for this.
Any chance that there is a module around that handles “intermodule communication” - like an application broker?

If not and I got you right than my way must be to adjust a given source code which leads me in trouble with updates.

Any other idea how I can solve my problem “How can I synchronize on/off switching of a LED strip with MMM-Pir’s on/off switching of monitor”?
Thanks for any suggestion.
Ralf

sdetweil

@rkorell i think framelight can also listen and act on other ‘system’ (any) notification

as these two are from another module, not the core ‘system’.
therefore you can setup for ANY notification

rkorell

@sdetweil awesome…

I’ve missed that, I’m so sorry!
Thanks for your effort in tutoring!

Highly appreciated!

Just another quick question - fiddling with the developer console in Chrome:
I’ve found the Application tab and there is a recorder for “notifications” but there is no notification shown up.
Any chance to debug the notifications in my config (I would like to see “sender” and “payload” …

Thanks again for your kind support!

Warmest regards,
Ralf

sdetweil

@rkorell their idea of notifications is not the same as MagicMirror’s usage

you can use MMM-ViewNotifications. it presents a window( config change to leave them there for awhile, as default clears them too fast during development use)

rkorell

Dear Sam, (@sdetweil ),
as always (!) Great.
this worked - thanks a LOT!

With this little “sniffer” I was able to figure out, what happens…
It is just a rumour that MMM-Pir sends a “USER_PRESENCE” notification.
In fact there is one and only one notification “MMM_PIR-SCREEN_POWERSTATUS”.
With a little bit trial & error I was able to identify that the payload is true / false for the events “screen on” / “screen off”.
With further searches today I found @MMRIZE’s module MMM-NotificationTrigger which seems to do what I’m looking for - Tranlating SCREENPOWERSTATUS-true to FRAMELIGHT_ON and opposite.

Hopefully I can figure out how to use MMRize’s module in right manner.

Warmest regards,
Ralf
(I have to wait for LED strip - they are shipping currently)
Keep you posted.