Implementation on ESP32

[risoul]

Hi,

I use an ESP32 as data logger.
Data are save on sdcard in one csv file.

I want to plot the data on a webpage using ESP32asyncwebserver with chartjs but ESP32 is limited in memory. One month of data is around 50Mb, and I record for year.
The user must be able to pan and zoom to explore the datas

What is for you the best way to implement this ?

Thanks