I want to change the value of a saved flow context several times during a day, for example; 0000hrs == 45 0400hrs == 64 0500hrs == 55 0800hrs == 50 etc, etc... I realise that I could achieve this simply by having a number of inject nodes, all set with the relevant time & value (feeding into a …

@moebius Thanks, but a bit overkill for my needs. Colin's node-red-contrib-ramp-thermostat works well also, so I'll stick with it.

You could mark this as the solution :slight_smile:

[image] ghayne: You could mark this as the solution :slight_smile: I could.. but I want to try it first, to see if Plan A works....

This is how i solve most variable configurations in my flows (although i guess your problem could be solved easier), but maybe it fits for you. To try it you have to change the time in the config (keep the TZ in mind) [Screenshot%20at%202019-04-26%2017-44-18] [{"id":"bd0ad736.9379c8","type":"inj…

[image] Paul-Reed: Colin's node-red-contrib-ramp-thermostat works well also Not mine. I think it a pity that node combines the ramp and the t/stat. I think it would be better as two components, the ramp for profiling anything, possibly in no way related to a t/stat, and the t/stat as a sepa…

No problem - i've learned even something with the sample! Cause the use of a colon inside the topic gave me a hard time (guess because it's internally used as identifier)... :slight_smile:

Ah, my wrong assumption - it's the work of @cflurin But yes, agree Colin. I'm getting around the 'ramp' problem by setting 2 values very close to each other. 0000hrs == 45 0359hrs == 45 0400hrs == 64 0459hrs == 64 0500hrs == 55 etc, etc...

[image] Paul-Reed: I'm getting around the 'ramp' problem by setting 2 values very close to each other. From memory I thought you could make the timestamps the same to get an instantaneous change, so in your example 0000hrs == 45 0400hrs == 45 0400hrs == 64 0500hrs == 64 0500hrs == 55 et…

[image] Colin: but I may be mistaken. No mistake Colin, that does work.

Another possibility using the inbuilt nodes: [{"id":"f4f88c80.c5fc5","type":"change","z":"1d66267b.4c5caa","name":"","rules":[{"t":"set","p":"time","pt":"msg","to":"$substring($fromMillis(payload+36E5),11,5)","tot":"jsonata"},{"t":"set","p":"output","pt":"flow","to":"$exists($flowContext(\"output\"…

Node-RED

Node-RED Forum

Inject preset numbers at different times of day

General

Paul-Reed 26 April 2019 14:45 2

Doh! just hit by a lightning bolt - a ramp-thermostat node!

Topic		Replies	Views
Changing the inject node repeat option from UI General	10	4004	13 April 2023
Use part of msg.xxx as name of flow variable to be changed General	13	1012	6 October 2020
Flow.context values not being set as expected General	6	503	29 August 2020
Trigger node help - please General	10	1125	1 June 2019
Moment Node: using a flow or global variable for the adjustment value General	9	1208	1 January 2021

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Inject preset numbers at different times of day

Related topics