Hello everyone! Completely new, but I am very much in need of help. I'm currently working on a project where I retrieve a time of sun rise and sun set from a website ( https://soltider.dk/loc/6100-haderslev-danmark# ) so that I may transfer it to an Arduino and use it to turn lights on and off. I a…

Hello ladies and gentlemen! Terribly sorry for the hiatus on this thread, I didn't make it in time and as such took a small break from it before beginning again. Having tried #sunset, even span#sunset, #span#sunset, span[id="sunset"], span#[id="sunset"] I can say that I've done a fair bit and nothi…

There are several different nodes, that will trigger a message sunrise and sunset ( based on lat long that you supply). Try searching on http://flows.nodered.org

You can make your flow run each day by configuring the Inject node to repeat once a day at the time you want. You probably also want to configure it to run at startup. However I suggest you search the flows site flows.nodered.org for sunrise in case you find something that would save you effort. …

.. That is honestly kinda handy to simply get a node to do it, thank you!, but what I'm hoping for is instead learning how to get the HTML node to find a specific part of a HTML website and printing it again and again every day. With the current setup I could have the injector simply send its signa…

[image] Christian: Maybe get a Function node to search for the < span id="sunset">16:07</span bit and have it print the number within? I am obviously missing something, I thought that is what you said you had already achieved. Can you explain again please?

There is a core node called html that can pull strings out of a (static) html page -- according to its info: Extracts elements from an html document held in msg.payload using a CSS selector. Inputs payloadstring the html string from which to extract elements. selectstring if not configured i…

Unfortunately what I did is go to the website, inspect its elements, find the time and copy the Outer HTML. That is how I get it once, but then it becomes static in the HTML node. I'd have to change it every day manually, where I hope to have it done automaticly. I am having very little success, unf…

Ouf, that's not good. I'm unsure what else could be used. I'm not great with functions, but perhaps something will have to be done there? I know I can use a .find function, but that would require that I have my computer download the website every day, for the function to then find it in the website…

Another possible way could be getting Node Red to somehow follow the HTML URL (unsure what those are called.) "html>body>div#container<div#mapcontainer>div#info>div#infotable>div.infotd>span#sunset" and get it to read the number in the sunset part? I'm completely blank in how to do it, however. Th…

Sure, but unfortunately I can only send one picture per post, so it'll crop it up a bit. [HTML%20request]

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Trying to retrieve info from a website problems, I'm just a rookie

General

ukmoose 21 November 2018 17:37 10

can you post your flow? From the image, I’m confused as to why it is giving the same value every day.

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Trying to retrieve info from a website problems, I'm just a rookie

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