Is the Nextion microSD reader still inaccessible to the connected Arduino…?
There’s this from 18 months ago, but Google shows me no further information or updates on the issue:
Basically, the Nextion documentation says:
“Currently, the microSD slot is used to upload a TFT project file only. All other potential uses are currently not supported.”
The Basic and Enhanced Nextion displays do not support access to the SD card. The Intelligent Nextion displays do have access to the SD card. I you look in the Nextion instruction set you will see instructions for accessing the SD card but these only apply to the Intelligent Nextion displays. Also, if you look in the Nextion IDE there are objects that allow access to the SD card. I do not have an Intelligent Nextion display so I not able to test any of these.
[Edit] I've also updated the thread you linked to for the benefit of anyone else that finds it.
Oh, great. Thanks. On both points.