I am trying to compile a very simple scratch to show simple image on the Led matrix
in Arduino mode, I fail to compile the code, it is said that But it is said that ‘ledMtx_3’ not found. So in Arduino edit mode, I add the headers for MeLEDMatrix and MePort then it compiles without any issue. I am trying to upload the compile code in Arduino edit mode, it finish with any error. However, it doesn’t work after the upload even I reboot mBot. Why is it?