Hi. I am using the node below: [image] node-red-contrib-ds18b20-sensor Node-red node to connect DS18B20 sensors The problem is, I need to control a relay with a button on the screen, but for now, I am using an LED to see if it works or not. When I click on it, i…

I switched to this one: [image] node-red-contrib-sensor-ds18b20 Node-RED node to get temperature in centigrades from DS18B20 sensors It greatly reduced the delay for the switch.

[{"id":"fe382da6.7454b","type":"tab","label":"Test","disabled":false,"info":""},{"id":"9d68992a.599ce8","type":"ui_tab","z":"","name":"Home","icon":"dashboard","order":3,"disabled":false,"hidden":false},{"id":"fbf99233.a08e6","type":"ui_group","z":"","name":"Default","tab":"9d68992a.599ce8","order":…

Shared the flow above. Also, I had a problem using gauges. It kept saying "Connection Lost", and it stopped doing that when I got rid of and put Text instead of those. I want to do it with gauges, but I don't understand why that caused a problem.

If I interpret the flow correctly you are trying to read the temperature of four DS18B20 devices every second. If I remember correctly it takes most of a second to read a DS18B20, so trying to read four in one second is doomed to failure. Does it improve matters if you drop that down to once every…

It is the same. Tried with 5 seconds too. I wrote "button", but it is actually the "switch" node in dashboard. Sorry about that part. In my flow, timestamp starts and repeats the sensor reading, then switch separates them by their unique IDs, then after a tiny amount of delay (without these, it kee…

With the inject running at ten seconds, if you put a debug node on the output of the sensor node what do you see? What is the timing of the messages going to that debug node?

I see that it prints out all 4 at the same time mostly, sometimes the 3rd one is one second late, and the 4th one is 2 seconds late, compared to 1st and 2nd one. Button works fine for some time, then it happens again. I think in that 10 second timestamp, 4 second is for sensor to read, 6 seconds are…

Is there anything I can use as an "interrupt"?

Did you wait for the button stopped working? Does the node output stay the same at that point?

Node output stays the same. It shows 4 values as expected, then I can freely change the swtich state. When it is time for the sensor node to do its thing again, I am unable to change the switch state. I press it, and it happens after the sensor node is done doing its thing.

Problem Using a Button with DS18B20 Node

General

zenofmud 7 July 2020 18:04 2

Show us your flow. Make sure to read this thread first. How to share code or flow json

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Problem Using a Button with DS18B20 Node

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