ds18b20 | Get temperature from ds18b20 sensors

I'm using Node Red to monitor a set of aquaria. We have 14x DS18b20 sensors, one for each aquarium. I'm able to send an alarm via email if the measured temperature of one sensor is different to the set value. However, sometimes, during maintenance, we take the sensors out of the aquaria. Therefore, I'd like to write a fucntion that only sets the alarm if the abnormal value was mesured e.g. three consecutive times (values are measured every 15 min). How could I do that?
Currently, I wrote a function that sets msg.payload to "Alarm" if any msg.payload[i].temp (the 14 measured values in an array) is more than 1.5 °C diffrent to the set value. This fucntion is followed by a switch that then triggers an email.
Do you have suggestions for my problem? Thanks for your help!

The following code is supposed to abstract a temperature sensor for a project involving Arduino.

I have the Sensor function representing the hardware sensor, a sensorFactory function to create instances of the sensor, and a saveSensor / findSensor function that stores / returns the sensor objects from an array.

is the one wire bus for ESP32 only available for pin 16 and 17? I am going to rework a project which was first written in Arduino IDE. There it was possible to set the pin for the one wire bus. I want to use nanoframework but my pcb is already there and port 15 and 23 are used for the one wire bus. I really like nanoframework and the sample for DS18B20 does not find any sensor. With Arduino IDE it is working. Is there a way to specifiy the pin for one wire? THX

node --version v6.10.1

sample run

I have successfully implemented DS18B20 on Raspberry Pi with Gatsby frontend. My next step, put all temperature data to the mongodb which I use STRAPI as a backend. The following is my code in server.js

I try to implement raspberry pi with DS18B20 by javascript/react/nextjs with socketio. It's successful for the simple javascript/jquery with socketio. But after I change to nextjs/reactjs with socketio, it's failed to display.

Please help to verify where I miss in the nextjs/reactjs code.

Success Code as below:

server.js

I try to implement backend and frontend Application but it always has an error even I use cors.

Please help to verify the code below:

Backend server.js

I (newbie alert) have problems to parse information from a XML document. I have a device (called OW-SERVER) that reads sensor values from a 1wire sensor network and provides the readings in a XML document. The XML typically looks as follows:

I have a LHT65 Sensor which sends an encoded payload and I found this code in javascript:

https://gist.github.com/koenvervloesem/c9dca322bd25a98dd042324469d0081d