MIT APP Inventor 2 Esp32 App with Dynamic Distance & RSSI Highcharts Graph using Live Data Implementation Help

[SteveJG]

@MelodyApril

Is this what you meant by " two paired values " ?

Yes. Congratulations. Now instead of printing this to a Label, convert it to a List and you can use it with ChartMaker. Sorry, I have no idea how to use it with HighCharts.

[MelodyApril]

Still no luck with getting the data.csv working.

[MelodyApril]

Heads up, working locally with data.csv files it's not possible from what I understood when it comes to Highcharts and many other Chart clients, sadly.

The data.csv file would need to be hosted somewhere online, since my App works offline I give up on the implementation. That is the reason why it didn't want to work locally it can't.

I will be using ChartMaker or the Canvas module for my project.

Thanks for all the help and sugestions!

[F3John]

Hi MelodyApril,
some month ago, i was at the same point as you....
ESP32 with BLE and Highcharts and i'am also get stuck using Highcharts or charts.js or whatver with App Inventor

Because of all your posts i got an idea to try it again

using highcharts (javascript) in a HTML with local CSV did not work because the brower blocks it and something with ajax just work with a Server

but there are solutions i think

for example d3.js can load local CSV for a Chart
and the custom Webviewer in App inventor doesnt block file opening from a javascript

so it should work...
i have to try it
did you try to work with custom webviewer?

[MelodyApril]

I haven't yet my dear, but this is an awesome suggestion. At the moment I am trying to translate what I currently have to iOS and as soon I manage to do that I can try the method you proposed on Android. Thing is, I kinda need to make the apps look and behave the same on both operating systems so I am not sure how viable this would be since I ain't sure if I can apply the same concepts and workflow in Thunkable.

[F3John]

i could find some time to reopen my old project with Highcharts and change it to Custom Webviewer Extension.

i was able to get the Highcharts Demo running with Random Data. Now i have to get everything running with a data.csv

[MelodyApril]

My dear, that'd be great, let me know if you manage to have it working, I think that there are some security problems with fetching the .csv file locally, at least with the "regular" browsers.