Information not saved when refreshing browser

[moryoav]

The module works great and displayed temperature and humidity. However, the information does not survive a browser refresh, when the browser is refreshed the information is lost, it'll display "Loading ..." instead of the last known info. Can that be avoided? anyway to store the information somehow? (Since it's only a browser refresh, not a service restart)

[balassy]

Hello @moryoav,
Thank you for trying this module and thanks for your feedback! You are correct, this module does not save any information in the browser, and the other modules I've seen so far work similarly. When the page and the module is loaded, it displays the loading message until the remote thermometer sends the current temperature and humidity data the next time.
However the message should be "Waiting for temperature data..." if you are using the MagicMirror in English or in Hungarian, which I believe is less confusing than "Loading...". In what language do you use your mirror?

[moryoav]

I use it in English and the text is "Loading ...". Not the issue that troubled me though... I'll see if I can figure out a workaround to the refresh in Node-Red.

[sisimomo]

You could use the same principle that is found in this module. They use "fs" in Node.js to read/write a file in the root directory of the module called "logs.json". In this file is stored all the previous message receive. In our situation, it will be a list of all the last state of each sensor.

something like:

{
  sensors: {
    "1": {
      "temp": 27,
      "humidity": 30.4,
      "battery": 100,
    },
    "2": {
      "temp": 28,
      "humidity": 30.2,
      "battery": 59,
    }
  }
}