Hi folks, I have been bragging too much lately about Node-RED's capabilities. As a result, I'm getting more and more questions from people in my environment :woozy_face: Today I received a very interesting question, but seems my brain has shrinked by the cold weather ... Does anybody know if it …

[image] janvda: I think you are referring to the case where an android device after some time (while there is no user activity) automatically decides to drop its wifi connection It is not only to do with the wifi connection, Android will also put the application to sleep after a while.

When I put 2 graphs with 10 data sources on the active dashboard, I could see "connection lost" even when tablet didn't go to suspend mode. It looks like every source (data with unique topic) is refreshing the page (partially, can see "loading" popup for each source) so with 10+ my (a bit old) table…

[image] Marooned: When I put 2 graphs with 10 data sources on the active dashboard, I could see "connection lost" At what rate are you adding points, and what is the time range of the graph? For example you might be adding the points 1 per minute for each line and the graph range is 4 hours. …

One graph has range of 1h, second has 24h. Points are added every few minutes if I remember correctly (temperature around the house).

[image] Marooned: One graph has range of 1h, second has 24h. Points are added every few minutes That is not too excessive, ten lines every two minutes for 24 hours would be 7200 points which all have to be shuffled across when you get an update. Perhaps the tablet is just not up to the job …

For sure tablet has its good days behind which was the reason I gave it a second life as a simple wall panel. Anyway, a bit of offtopic here with the graph (perhaps that widget requires stronger machine to work smoothly). I mentioned it as it could give some hint on how to get connection lost withou…

I have a number of android tablets around in the house (always on power, wifi connected) and I think if you add code so that the browser sends "something" over the websocket, the connection will be kept alive. At least I think so... In addition you can add a function that regularly checks the statu…

Looking forward to your examples. I've an old Nook tablet that I've installed LinageOS (Cyanogenmod successor) that I'd like to use for a 24/7 monitor, but the screen going to sleep issue makes it kind of pointless -- the idea is to get valid info when I glance at the screen and waiting or having t…

[image] wb666greene: but the screen going to sleep issue makes it kind of pointless You should be able to tell Android to keep the screen active. Google should tell you how.

To keep the screen on (dimmed) I use an app named Screen On Screen ON [image] Screen on allows you to keep the screen ON with five options to adjust the brightness preventing the screen to lock and to keep the screen awake . You can set your screen timeout with these five options: 1) Keep…

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Keeping the dashboard alive

Dashboard

RogierQ 2 December 2018 22:10 24

I agree. Same here

Connection Lost (Node-RED Snap)

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Keeping the dashboard alive

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