Line graph please help

[benzedira_yasmine]

I tried to make a graph with canvas but I'm getting this results

And I'm using this blocs

[ABG]

BytesAvailabletoReceive tells you how MANY bytes are waiting in the input buffer.

It does not give you the actual incoming data.

Do a ReceiveText to get the incoming data, and show it in a Label.text to know what to do with it next.

It would also help to show the sketch that is sending the data, to make sure both sides are talking the same language.

[benzedira_yasmine]

I didn't understand that much
Could you show it to me how to do it in blocks

[ABG]

This is the native AI2 Chart component's BlueTooth data feed ...

Bluetooth Client Polling Rate

(part 2) TinyDB

Summary

The TinyDB component can be used as a Data Source by using values identified by tags. In order to use values of TinyDB in the Charts, the values have to be Lists containing List entries with 2 entries each (as shown in Figure 44). We have seen this format before in the ImportFromLists block example. [image] Figure 44: TinyDB compatible value format Provided a value of the valid format is stored in the tag value, the value can then be imported as follows: [image] Fig…

More Charts samples are at

FAQ Section: Charts and Graphs

AI2 Charts Component AI2 Charts Component Help - MIT Oct 2022 AI2 Charts Usage Guide - @elatoskinas Charting CSV Data by DateTime in the AI2 DataFile component - ABG Realtime Chart sample - @Kevinkun Javascript based Chart..js examples / Spanish / Juan Antonio How to generate an animated Pie Chart using the Chart.js library Gauge Charts Plotly JS file to display real time data - Giriraj Pawar Highcharts Setup on AI2 Charting Extensions ChartMaker Extension - Kager & Manning ChartMak…

To receive BlueTooth data for your own purposes,
here are some standard samples ...

The simplest sample:

Here is a simple BlueTooth text receiver sample, for single value per line:

I recommend getting that working first, before going on to trying to graph the data.