I wrote the following counter: it 's start counting from a defined time forward. I want it to continue the count from the defined time even if my RPI is rebooted. But after a reboot the initial time is reset to the time the node red server starts. I'v tried to save the initial time to a file, b…

thank you. what i'v done is i starred my flow with a function "is reset = true" therefor eliminating the node red forced "reset" of the flow.

I have enable the persistent context, But when the server finishes the reboot it flushes the current time to my flow.set function and overrides my initial saved time. therefor the timer start counting from 0 (from the current time) [{"id":"7771cfcd.f701","type":"tab","label":"Flow 14","disabled":f…

[image] Ki-va: when the server finishes the reboot it flushes the current time to my flow.set I can't look at your flow at the moment, but if it is doing something on restart that you don't want then change that bit of the flow so that it does not.

First, there are far better experts than I but let me at least offer a few of my ideas. First, you need to go into the settings.js file and change default save to localfilesystem. Next, you need to set the data to save into the localfilesystem with a statement like - flow.set('variable name',data,'d…

[image] gerry: Next, you need to set the data to save into the localfilesystem with a statement like - flow.set('variable name',data,'default') Actually, if - in settings.js - you set the default to be the localfilesystem, you don't need the'default' in the statement since (oh gosh this is go…

i'll try to explain my problem again: when the node red server loads up after a reboot of the RPI, my UI web page is refreshed (automatically) when the node red is up and running, all my saved data (no matter how i save it - flow.get with the persistent context enabled or by saving it to a file wi…

Context saved to a file will not automatically be reset by a restart. Either you are not saving it to a file or something in your flow is resetting it. Make a very simple flow that saves a value to the context using an inject button. Have another inject that gets it from the context and passes it t…

YOu have probably got the logic incorrect You need to allow for a couple of cases Flow starts with no values set Flow starts with values previously set and they need to be used as a starting point You then need to think about how you handle each of these as well as edge use situations i.e. flow …

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Continuing counting after reboot

General

michaelblight 25 November 2019 02:34 2

I don't have NR with me so I can't look at your flow. But have you enabled persistent context so flow variables get restored on restart?

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Continuing counting after reboot

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