ESP32 CYD as a display for data traffic

RouterOS General
1

https://www.youtube.com/watch?v=LcNpZg8m7s0

After watching the video I bought a ESP32 Cheap Yellow Display Board (CYD ESP32-2432S028R) with the idea of ​​monitoring the eth1 of my hAP ax3.

After downloading the display files from here, I configured the display resolution and all the requested data as indicated on: https://github.com/Druvis-Timma/Mikrotik/tree/main/Arduino/esp32_graphing

It works but there are 2 problems that I can’t solve even after many attempts:

  1. The interface to monitor is eth1 which has id 0, if I configure “const int graph_interface = 0” esp32 show me only a black screen;
    interfaces.png
  2. If the transfer speed is high the bar is not displayed, the graph becomes smaller but does not show the colored bar;

Has anyone had the same experience and knows how to help me?

Thanks

2

Index numbers (e.g. 0, 1, …) … are only valid after executing print command … and are valid only until another print command is executed (even if in different configuration branch). So command would properly be written as const in graph_interface = [ find name=ether1 ] or something like that … depending on how exactly graph_interface is then used.


I’d say that this has nothing to do with ROS … it has something to do with the display itself and/or how custom code (run by ROS never the less) drives display.

3

Thanks for your help, unfortunately it doesn’t work… I give up for now.

Only Druvis can help me :laughing:

4

My mistake, using API the correct interface id is 1 and not 0.

There is always the problem of the graph not being drawn if the traffic is more than about 100 Mbps.