Hi Merijn,
I would like to understand the issue. Could you please let us know if garden.seeedstudio.com/index.php … ello_World works fine in your environment ?
“Modified vertical addressing method is used for displaying text in the driver provided.” means each 8x8 pixel character is drawn in vertical mode.
Please use
SeeedGrayOled.setVerticalMode(); // Set to vertical mode for displaying text
before drawing characters.
Let us know if this solves the issue.
Regards,
Viswa